Document:

<PAGE>   1
                                                                    EXHIBIT 10.6

                                   AMENDMENT NO. 3

              SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN FOR EMPLOYEES

The Plan named above gives the Employer the right to amend it at any time.
According to that right, the Plan is amended as follows:

Effective December 31, 1998:

By striking the definition of ASSOCIATED PLAN in the DEFINITIONS SECTION of
Article I and substituting the following:

    ASSOCIATED PLAN means The Principal Pension Plan.

Effective January 1, 1999:

By striking the last two sentences of the first paragraph in the DISTRIBUTIONS
UNDER QUALIFIED DOMESTIC RELATIONS ORDERS SECTION of Article VI and substituting
the following:

    Nothing in this section shall permit a Participant a right to receive a
    distribution at a time otherwise not permitted under the Plan. Distribution
    to an alternate payee may be made in a single sum equal to the present value
    (as determined by actuarial valuations) of the benefit payable under the
    terms of the Qualified Domestic Relations Order. This single sum payment
    must be requested within 60 days after the date the Qualified Domestic
    Relations Order is approved by the Employer. With the exception of this
    single sum benefit, nothing in this section shall permit the alternate payee
    to receive any other form of payment not permitted under the Plan. in no
    event may a single sum distribution be made to an alternate payee after the
    date the Participant ceases to be an Employee due to retirement.

Effective March 1, 1999:

By striking the definition of ELIGIBLE EMPLOYEE in the DEFINITIONS SECTION of
Article I and substituting the following:

    ELIGIBLE EMPLOYEE means any Employee of the Employer (including individuals
    who were active participants under the Principal Health Care, Inc. Pension
    Plan on April 30, 1998) who is invited to participate. in the Plan and who
    represents a select group of highly-compensated or management Employees.

Effective January 1, 2000:

By striking entirely from the ACCRUED BENEFIT SECTION of Article IV the words
"However, Accrued Benefit is modified as follows:" and the immediately following
paragraph that begins with the words "The actual dollar amount...".

Effective January 1, 2001:

By adding the following as the last sentence in the first paragraph in the
ADMINISTRATION SECTION of Article VIII:

                                       1
<PAGE>   2

    Benefits under this Plan will be paid only if the Plan Administrator
    decides, in his discretion, that the applicant is entitled to them.

This amendment is made an integral part of the aforesaid Plan and is controlling
over the terms of said Plan with respect to the particular items addressed
expressly herein. All other provisions of the Plan remain unchanged and
controlling.

Unless otherwise stated on any page of this amendment, eligibility for benefits
and the amount of any benefits payable to or on behalf of an individual who is
an Inactive Participant on the effective date(s) stated above, shall be
determined according to the provisions of the aforesaid Plan as in effect on the
day before he became an Inactive Participant.

Signing this amendment, the Employer, as plan sponsor, has made the decision to
adopt this plan amendment. The Employer is acting in reliance on its own
discretion and on the legal and tax advice of its own advisors, and not that of
any member of the Principal Financial Group or any representative of a member
company of the Principal Financial Group.

Signed this 28th day of December, 2000.
            ----        --------  ----

                                             PRINCIPAL LIFE INSURANCE COMPANY

                                             By /s/ LYNN M GRAVES
                                                -----------------

                                             2ND VICE PRESIDENT
                                             --------------------
                                                    Title

                                       2
<PAGE>   3

                      PLAN PAGES AFFECTED BY THIS AMENDMENT

Page 12- removal of accrued benefit modification.

Page 17 - change in QDRO language, 1st paragraph

Page 19 - change to Section 8.01, 1st paragraph

                                       3
<PAGE>   4

                                 AMENDMENT NO. 2

              SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN FOR EMPLOYEES

        The Plan named above gives the Employer the right to amend it at any
time. According to that right, the Plan is amended as provided below:

Effective January 1, 1998,

        by striking the following:

                Page 3                  Page 16
                Page 4                  Page 17
                Page 14                 Page 24
                Page 15

        and substituting the following:

                Page 3                  Page 16
                Page 4                  Page 17
                Page 14                 Page 17a
                Page 15                 Page 24

Effective July 3, 1998,

        by striking the following:

                Page 7                  Page 19

        and  substituting the following:

                Page 7                  Page 19

        The provisions and conditions set forth on any page of this amendment
are a part of the Plan as fully as if recited over the signature(s) below.

        By signing this amendment, the Employer acknowledges having counseled to
the extent necessary with selected legal and tax advisors regarding the
amendment's legal and tax implications.

        Signed this 1st day of October, 1998.
                    ---        -------

        PRINCIPAL LIFE INSURANCE COMPANY        PRINCIPAL MUTUAL LIFE INSURANCE
                                                COMPANY

        By /s/ MAX F. JOHNSON                   By /s/ MAX F. JOHNSON
           -----------------------------           -----------------------------

        Vice President - Human Resources        Vice President - Human Resources
        --------------------------------        --------------------------------
                     Title                                   Title

<PAGE>   5

                                 AMENDMENT NO. 1

              SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN FOR EMPLOYEES

        The Plan named above gives the Employer the right to amend it at any
time. According to that right, the Plan is amended as provided below:

Effective January 1, 1997,

        by striking the following:

               Page 3
               Page 12

        and substituting the following:

               Page 3
               Page 12

        The provisions and conditions set forth on any page of this amendment
are a part of the Plan as fully as if recited over the signature(s) below.

        By signing this amendment, the Employer acknowledges having counseled to
the extent necessary with selected legal and tax advisors regarding the
amendment's legal and tax implications.

        Signed this 11th day of September, 1997.
                    ----        ---------
                                                PRINCIPAL MUTUAL LIFE INSURANCE
                                                COMPANY

                                                By /s/ MAX F. JOHNSON
                                                   -----------------------------

                                                Vice President - Human Resources
                                                --------------------------------
                                                             Title

<PAGE>   6

                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                                  FOR EMPLOYEES

Restated January I, 1996

<PAGE>   7

                          AMEND. NO. 2 PAGE DTD. 1-1-98
                          -----------------------------

                                TABLE OF CONTENTS

INTRODUCTION

ARTICLE I               FORMAT AND DEFINITIONS

     Section 1.01 ----  Format
     Section 1.02 ----  Definitions

ARTICLE II              PARTICIPATION

     Section 2.01 ----  Active Participant
     Section 2.02 ----  Inactive Participant
     Section 2.03 ----  Cessation of Participation-

ARTICLE III             CONTRIBUTIONS

     Section 3.01 ----  Employer Contributions
     Section 3.02 ----  Investment of Contributions

ARTICLE IV              RETIREMENT BENEFITS

     Section 4.01 ----  Accrued Benefit
     Section 4.02 ----  Amount of Benefit at Retirement

ARTICLE V               OTHER BENEFITS

     Section 5.01 ----  Death Benefits
     Section 5.02 ----  Vested Benefits
     Section 5.03 ----  Cost of Living Adjustment
     Section 5.04 ----  Disability Benefits

ARTICLE VI              WHEN BENEFITS START AND DISTRIBUTION OF BENEFITS

     Section 6.01 ----  When Benefits Start
     Section 6.02 ----  Automatic Forms of Distribution
     Section 6.03 ----  Optional Forms of Distribution and Distribution
                        Requirements
     Section 6.04 ----  Distributions Under Qualified Domestic Relations Orders

ARTICLE VII             TERMINATION OF PLAN

TABLE OF CONTENTS                       3

<PAGE>   8

                          AMEND. NO. 2 PAGE DTD. l-l-98
                          -----------------------------

ARTICLE VIII            ADMINISTRATION OF PLAN

     Section 8.01 ----  Administration
     Section 8.02 ----  Benefit and Pension Committee
     Section 8.03 ----  Benefit Plan Investment Committee
     Section 8.04 ----  Records
     Section 8.05 ----  Information  Available
     Section 8.06 ----  Claim and Appeal Procedures
     Section 8.07 ----  Delegation of Authority

ARTICLE IX              GENERAL PROVISIONS

     Section 9.01 ----  Amendments
     Section 9.02 ----  Provisions Relating to the Insurer and Other Parties
     Section 9.03 ----  Employment Status
     Section 9.04 ----  Rights to Plan Assets
     Section 9.05 ----  Beneficiary
     Section 9.06 ----  Nonalienation of Benefits
     Section 9.07 ----  Construction
     Section 9.08 ----  Legal Actions
     Section 9.09 ----  Word Usage
     Section 9.10 ----  Small Amounts

PLAN EXECUTION

TABLE OF CONTENTS                       4

<PAGE>   9

                                  INTRODUCTION

          The Employer previously established a nonqualified deferred
compensation plan on January 1, 1982. The plan has been designed as, and is
intended to be, an unfunded plan for purposes of the Employee Retirement Income
Security Act of 1974, as amended, and a nonqualified plan under the internal
Revenue Code of 1986, including any later amendments to the Code. The plan is
designed to provide benefits for a select group of highly compensated or
management employees.

          The Employer is of the opinion that the plan should be changed. It
believes that the best means to accomplish these changes is to completely
restate the plan's terms, provisions and conditions. The restatement, effective
January 1, 1996, is set forth in this document and is substituted in lieu of the
prior document.

          Any funds accumulated for purposes of providing benefits under this
plan are fully available to satisfy the claims of the Employer's creditors.
Participants have no greater rights with regard to such fund than any other
general creditor of the Employer.

INTRODUCTION                           5

<PAGE>   10

                                    ARTICLE I

                             FORMAT AND DEFINITIONS

SECTION 1.Ol--FORMAT.

       Words and phrases defined in the DEFINITIONS SECTION of Article I shall
have that defined meaning when used in this Plan, unless the context clearly
indicates otherwise.

       These words and phrases will have an initial capital letter to aid in
identifying them as defined terms.

SECTION 1.02--DEFINITIONS.

       ACCRUAL SERVICE means, on any date for a Participant, his accrual service
       on such date under the Associated Plan.

       ACCRUED BENEFIT means the amount of monthly retirement benefit on the
       Normal Form accrued by an Active Participant under this Plan as of any
       date. See the ACCRUED BENEFIT SECTION of Article IV.

       ACCRUED BENEFIT ADJUSTMENT means an adjustment which shall be applied to
       determine a Participant's benefit, as defined under the Associated Plan.

       ACTIVE PARTICIPANT means an Eligible Employee who is actively
       participating in the Plan according to the provisions in the ACTIVE
       PARTICIPANT SECTION of Article II.

       ACTUARIAL EQUIVALENT means, for a benefit payable on an optional form,
       that the value of such benefit is actuarially equivalent to the benefit
       payable on the Normal Form. The amount of each payment under an optional
       form shall be determined pursuant to the definition of actuarial
       equivalent in the Associated Plan.

       ADJUSTED COMPENSATION BENEFIT means an amount of monthly retirement
       benefit, determined according to Section 4.01.

       ANNUITY STARTING DATE means, for a Participant, the first day of the
       first period for which an amount is payable as an annuity or any other
       form.

       ASSOCIATED PLAN means The Principal Pension Plan For Employees.

       AVERAGE COMPENSATION means, on any given date, an Employee's average
       compensation under the Associated Plan.

       BENEFICIARY means the person or persons named by a Participant to receive
       any benefits under this Plan upon the Participant's death. See the
       BENEFICIARY SECTION of Article IX.

       CLAIMANT means any person who has made a claim for benefits under this
       Plan. See the CLAIM AND APPEAL PROCEDURES SECTION of Article VIII.

ARTICLE I                               6

<PAGE>   11

                          AMEND. NO. 2 PAGE DTD. 7-l-98
                          -----------------------------

       CODE means the internal Revenue Code of 1986, as amended.

       COMPENSATION means compensation as defined under the Associated Plan.
       However, the $200,000 limit prior to January 1, 1994, and the $150,000
       limit on and after January 1, 1994, (as adjusted) on Compensation
       specified in such definition shall not apply for purposes of determining
       a Participant's Supplemental Benefit under this Plan.

       CONTINGENT ANNUITANT means an individual named by the Participant to
       receive a lifetime benefit after the Participant's death according to a
       survivorship life annuity form of distribution.

       CONTRIBUTIONS means Employer Contributions as set out in Article Ill.

       EARLY RETIREMENT DATE means the Participant's early retirement date under
       the Associated Plan.

       ELIGIBLE EMPLOYEE means any Employee of the Employer who is invited to
       participate in the Plan and who represents a select group of
       highly-compensated or management employees,

       EMPLOYEE means an individual who is employed by the Employer.

       EMPLOYER means Principal Life Insurance Company,

       EMPLOYER CONTRIBUTIONS means contributions made by the Employer to fund
       this Plan. See the EMPLOYER CONTRIBUTIONS SECTION of Article III.

       ENTRY DATE means the date an Employee first enters the Plan as an Active
       Participant. See the ACTIVE PARTICIPANT SECTION of Article II.

       EXCESS BENEFIT means an amount of monthly retirement benefit, determined
       according to Section 4.01.

       FISCAL YEAR means the Employer's taxable year. The last day of the Fiscal
       Year is December 31.

       GROUP CONTRACT means the group annuity contract or contracts into which
       the Trustee enters with the Insurer for the investment of Contributions
       and the payment of benefits under this Plan. The term Group Contract as
       it is used in this Plan is deemed to include the plural unless the
       context clearly indicates otherwise.

       Any funds accumulated under the Group Contract are available to the
       general creditors of the Employer.

       INACTIVE PARTICIPANT means a former Active Participant who has an Accrued
       Benefit. See the INACTIVE PARTICIPANT SECTION of Article II.

       INSURER means Principal Life Insurance Company and any other insurance
       company or companies named by the Trustee.

       INTEGRATION LEVEL means a Participant's integration level as defined
       under the Associated Plan.

       LATE RETIREMENT DATE means the late retirement date under the Associated
       Plan.

ARTICLE I                               7
<PAGE>   12

       NORMAL FORM means the Normal Form under the Associated Plan.

       NORMAL RETIREMENT AGE means a Participant's normal retirement age under
       the Associated Plan.

       NORMAL RETIREMENT DATE means a Participant's normal retirement date under
       the Associated Plan.

       PARTICIPANT means either an Active Participant or an Inactive
       Participant.

       PLAN means the deferred compensation plan of the Employer set forth in
       this document, including any later amendments to it.

       PLAN ADMINISTRATOR means the person or persons who administer the Plan.

       The Plan Administrator is the Employer.

       PLAN YEAR means a period beginning on a Yearly Date and ending on the day
       before the next Yearly Date.

       PRE-89 ACCRUED BENEFIT ADJUSTMENT means an adjustment which shall be
       applied to determine a Participant's benefit, as defined under the
       Associated Plan.

       PRESENT VALUE means the current value of a benefit payable on a specified
       form and on a specified date. Present Value is determined pursuant to the
       definition of present value under the Associated Plan.

       REENTRY DATE means the date a former Active Participant reenters the
       Plan. See the ACTIVE PARTICIPANT SECTION of Article II.

       RETIREMENT DATE means the date a retirement benefit will begin and is a
       Participant's Early, Normal or Late Retirement Date, as the case may be.

       SOCIAL SECURITY BENEFIT means the monthly payment of primary insurance
       benefits determined for a Participant.

       The benefits shall be determined by applying a salary scale, projected
       backwards, to the Participant's pay as of any date of determination. The
       salary scale used shall be the actual change in the average wages from
       year to year as determined by the Social Security Administration.

       SUPPLEMENTAL BENEFIT means an amount of monthly retirement benefit,
       determined according to Section 4.01.

       TRUST means an agreement of trust between the Employer and Trustee
       established for the purpose of holding and distributing the Trust Fund
       under the provisions of the Plan. The Trust wilt provide for the
       investment of all or any portion of the Trust Fund in the Group Contract.

       TRUST FUND means the total funds held under the Trust for the purpose of
       providing benefits for Participants. These funds result from
       Contributions made under the Plan which are forwarded to the Trustee to
       be deposited in the Trust Fund as provided in the INVESTMENT OF
       CONTRIBUTIONS SECTION of Article III. The Trust Fund shall be valued
       annually at current fair market value on the date used for

ARTICLE I                              8
<PAGE>   13

       computing plan costs for minimum funding purposes and, at the discretion
       of the Trustee, may be valued more frequently. The valuation shall take
       into consideration investment earnings credited, expenses charged,
       payments made and changes in the value of the assets held in the Trust
       Fund.

       TRUSTEE means the trustee or trustees under the Trust. The term Trustee
       as it is used in this Plan is deemed to include the plural unless the
       context clearly indicates otherwise.

       YEARLY DATE means January 1, 1982, and the same day of each following
       year.

ARTICLE I                              9
<PAGE>   14

                                   ARTICLE II

                                  PARTICIPATION

SECTION 2.01--ACTIVE PARTICIPANT.

     (a)  An Employee shall first become an Active Participant (begin active
          participation in the Plan) on the earliest date on or after January 1,
          1996, on which he is an Eligible Employee. This date is his Entry
          Date.

          Each Employee who was an Active Participant under the Plan on December
          31, 1995, shall continue to be an Active Participant if he is still an
          Eligible Employee on January 1, 1996, and his Entry Date shall not
          change.

     (b)  An Inactive Participant shall again become an Active Participant
          (resume active participation in the Plan) on the date he again
          performs an hour of service as an Eligible Employee. This date is his
          Reentry Date.

          Upon again becoming an Active Participant, he shall cease to be an
          Inactive Participant.

     (c)  A former Participant shall again become an Active Participant (resume
          active participation in the Plan) on the date he again performs an
          hour of service as an Eligible Employee. This date is his Reentry
          Date.

SECTION 2.02--INACTIVE PARTICIPANT.

     An Active Participant shall become an Inactive Participant (stop accruing
benefits under the Plan) on the earliest of the following:

     (a)  The date on which he ceases to be an Eligible Employee (on his
          Retirement Date if he ceases to be an Eligible Employee within one
          month of his Retirement Date).

     (b)  The effective date of complete termination of the Plan.

     An Employee or former Employee who was an Inactive Participant under the
Plan on December 31, 1995, shall continue to be an Inactive Participant on
January 1, 1996. Eligibility for any benefits payable to him or on his behalf
and the amount of the benefits shall be determined according to the provisions
of the prior document, unless otherwise stated in this document.

SECTION 2.03--CESSATION OF PARTICIPATION.

     A Participant, whether active or inactive, shall cease to be a Participant
on the earlier of the following:

     (a)  The date of his death.

     (b)  The date he receives a distribution of his entire benefit under the
          Plan.

ARTICLE II                             10
<PAGE>   15

                                   ARTICLE III

                                  CONTRIBUTIONS

SECTION 3.01--EMPLOYER CONTRIBUTIONS.

     The amount and time of Employer Contributions shall be determined based on
actuarial valuations and mendations as to the amounts required to fund benefits
under this Plan.

SECTION 3.02--INVESTMENT OF CONTRIBUTIONS.

     All Contributions are forwarded by the Trustee to. be deposited in the
Trust Fund. Investment of Contributions is governed by the provisions of the
Trust, Group Contract and any other funding arrangement in which the Trust is or
may be invested.

     Plan assets are not held for the exclusive benefit of Participants or their
Beneficiaries.

ARTICLE III                            11
<PAGE>   16

                         AMEND. NO. 1 PAGE DTD. 1-1-97
                         -----------------------------

                                   ARTICLE IV

                               RETIREMENT BENEFITS

SECTION 4.01--ACCRUED BENEFIT.

     An Active Participant's monthly Accrued Benefit as of any date will be
equal to the greatest of (a) reduced by (c), or (b) reduced by (c) below:

     (a)  Supplemental Benefit: For an Active Participant whose Average Monthly
          Compensation is at least 125% of the current salary minimum used in
          the definition of a highly compensated employee under an 414(q) of the
          Code, an amount equal to the sum of (1) and (2) below reduced by (3)
          below:

          (1)  An amount equal to (i) 70.5% of his Average Compensation,
               multiplied by (ii) his Pre-89 Accrued Benefit Adjustment.

          (2)  An amount equal to (i) 65% of his Average Compensation,
               multiplied by (ii) his Accrued Benefit Adjustment.

          (3)  An amount equal to (i) his Social Security Benefit multiplied by
               (ii) the sum of his Pre-89 Accrued Benefit Adjustment and his
               Accrued Benefit Adjustment.

     (b)  Excess Benefit: For any Active Participant, an amount equal to his
          accrued benefit under the Associated Plan, determined as if the limits
          of Section 415 and 401(a)(17) of the Code were not operative.

     (c)  The normal form accrued benefit expected to be paid to the Participant
          under the Associated Plan at Retirement Date.

However, Accrued Benefit is modified as follows:

     The actual dollar amount of a Participant's Accrued Benefit at retirement
     may vary depending on his Average Compensation as defined under the
     Associated Plan on any given date.

SECTION 4.02--AMOUNT OF BENEFIT AT RETIREMENT.

     An Active Participant's retirement benefit on his Retirement Date shall be
equal to his Accrued Benefit on such date.

     An Active Participant's retirement benefit on his Early or Late Retirement
Date for (a), (b) and (c) in Section 4.01 above shall be equal to his Accrued
Benefit on such specified date, multiplied by the early or late retirement
factor derived from the table in Section 4.03.of the Associated Plan.

     An Active Participant's retirement benefit on the Normal Form shall not be
less than the greatest amount of benefit that would have been provided for him
had he retired on an earlier Retirement Date.

ARTICLE IV                             12
<PAGE>   17

     The Participant's retirement benefits shall be distributed to the
Participant according to the distribution of benefits provisions of Article VI.
The amount of payment under any form (other than the Normal Form) shall be
determined as provided under the OPTIONAL FORMS OF DISTRIBUTION AND DISTRIBUTION
REQUIREMENTS SECTION of Article VI.

ARTICLE IV                             13
<PAGE>   18

                          AMEND. NO. 2 PAGE DTD. 1-l-98
                          -----------------------------

                                    ARTICLE V

                                 OTHER BENEFITS

SECTION 5.01--DEATH BENEFITS.

     If a Participant dies before his Normal Retirement Date, monthly payments
shall be payable to the Participant's spouse in an amount equal to the
preretirement survivor annuity which would have been determined under the
Associated Plan, based on his Accrued Benefit under this Plan. The distribution
of death benefits shall be subject to the distribution of benefits provisions of
Article VI.

     Any death benefit after Normal Retirement Date will be determined by the
form of retirement benefit in effect on such date.

SECTION 5.02--VESTED BENEFITS.

     A Participant who becomes an Inactive Participant before retirement or
death will be entitled to a deferred monthly retirement benefit on the Normal
Form to begin on his Retirement Date. The deferred retirement benefit will be
equal to the Participant's Accrued Benefit from this Plan on the day before he
became an Inactive Participant.

     The amount of payment under any form (other than the Normal Form) shall be
determined as provided under the OPTIONAL FORMS OF DISTRIBUTION SECTION of
Article VI.

     If the Participant dies before his Normal Retirement Date, death benefits
shall be distributed according to the provisions of the DEATH BENEFITS SECTION
of Article V.

SECTION 5.03--COST OF LIVING ADJUSTMENT.

     For purposes of this Section, the following terms are defined:

     PAYEE means

     (a)  A Participant whose Retirement Date has occurred.

     (b)  A spouse who is entitled to payments under the DEATH BENEFITS SECTION
          of this Article.

     (c)  A Contingent Annuitant who is entitled to payments under a
          survivorship optional form on account of the death of the Participant.

     (d)  A Beneficiary who is entitled to payments under a certain and life
          optional form on account of the death of the Participant.

     PRICE INDEX means as of each January 1 the average of the Consumer Price
     Index (U.S. city average for all urban consumers, all items) for the
     immediately preceding calendar year, as published by the United States
     Department of Labor.

ARTICLE V                              14
<PAGE>   19

                            AMEND. NO. 2 PAGE DTD, 1-1-98

     ADJUSTMENT DATE means each March 1.

     ADJUSTMENT FACTOR means a number based on the quotient of (a) divided by
     (b) as shown in the following table:

     (a)  The Price Index as of such Adjustment Date.

     (b)  The Price Index as of the last previous Adjustment Date.

                  Quotient                        Adjustment Factor
                  --------                        -----------------
                 Less than 1                               1
                  1 to 1.10                    1 plus 75% of the excess
               1.l0 or greater                           1.075

     If the Adjustment Factor on any Adjustment Date is between 1 and 1.01, no
adjustment will be made on that Adjustment Date. However, on the next following
Adjustment Date the Adjustment Factor will be the product of the Adjustment
Factor normally determined for the current Adjustment Date and the immediately
preceding Adjustment Date.

     As of each Adjustment Date, the amount of the monthly payment derived from
his Accrued Benefit shall be changed to the amount determined by multiplying
such payment by the Adjustment Factor as of such Adjustment Date subject to the
following provisions:

     (a)  No decrease shall become effective which would reduce the monthly
          payment for a Payee to an amount which would be less than the amount
          (called the Floor) he would have received had the provisions of this
          Section never been in effect except that a new Floor shall be created
          (1) at the Participant's Normal Retirement Date or (2) on the date of
          such Participant's death before his Normal Retirement Date.

     (b)  A Participant or a Participant's spouse will have the amount of any
          increase in the amount of monthly payment for him on his first
          Adjustment Date multiplied by the ratio of (1) to (2) below:

          (1)  The number of complete months he has been a Payee prior to such
               Adjustment Date.

          (2)  12.

SECTION 5.04--DISABILITY BENEFITS.

     An Active Participant shall continue to accrue benefits under the Plan if
he becomes Totally and Permanently Disabled as described in the Associated Plan
before his Retirement Date (Normal Retirement Date, if earlier). An Active
Participant who becomes Totally and Permanently Disabled on or after September
1, 1990, shall not continue to accrue benefits unless such disability (1)
continues uninterruptedly for at least one year and (2) he will have completed
10 or more years of Vesting Service under the Associated Plan at the end of that
one- year period.

     Accrual Service for a Participant who is continuing to accrue benefits
shall be credited as one day of service for each day (without regard to the one
year. limitation) he is Totally and Permanently Disabled to the extent it has
not already been credited.

ARTICLE V                              15
<PAGE>   20

                          AMEND. NO. 2 PAGE DTD. 1-1-98
                          -----------------------------

     For purposes of determining Vesting Service under the Associated Plan,
Severance from Service Date shall not occur during any period when he is Totally
and Permanently Disabled.

     Compensation for a Participant who is continuing to accrue benefits shall
be deemed to be the greater of (1) his Compensation for the calendar year prior
to the calendar year in which he became Totally and Permanently Disabled subject
to the adjustment described in the COST OF LIVING ADJUSTMENT SECTION of Article
V, or (2) his compensation for the current calendar year.

ARTICLE V                              16
<PAGE>   21

                          AMEND. NO. 2 PAGE DTD. l-1-98
                          -----------------------------

                                   ARTICLE VI

                WHEN BENEFITS START AND DISTRIBUTION OF BENEFITS

     Any benefit distributed according to the provisions of this article will be
paid from the general assets of the Employer. Participants have no greater
rights with regard to such benefit than any other general creditor of the
Employer.

SECTION 6.01--WHEN BENEFITS START.

     Benefits under the Plan begin when a Participant starts benefits under the
Associated Plan.

SECTION 6.02--AUTOMATIC FORMS OF DISTRIBUTION.

     The automatic form of retirement benefit payable to or on behalf of a
Participant shall be the same as the form of benefit being paid under the
Associated Plan.

SECTION 6.03--OPTIONAL FORMS OF DISTRIBUTION AND DISTRIBUTION REQUIREMENTS.

     The optional forms of retirement benefit shall be the optional forms
available under the Associated Plan. If an optional form is chosen under the
Associated Plan, that optional form will also be in effect under this Plan. The
benefit payable on any optional annuity form available (other than the Normal
Form) shall be the Actuarial Equivalent of the benefit that would otherwise be
payable on the Normal Form.

SECTION 6.04--DISTRIBUTIONS UNDER QUALIFIED DOMESTIC RELATIONS ORDERS.

     The Plan specifically permits distributions to an alternate payee under a
qualified domestic relations order, as defined in Code Section 414(p), at any
time, irrespective of whether the Participant has attained his earliest
retirement age, as defined in Code Section 414(p), under the Plan. A
distribution to an alternate payee before the Participant's attainment of
earliest retirement age, as defined in Code Section 414(p), is available only
if:

     (a)  the order specifies distributions at that time or permits an agreement
          between the Plan and the alternate payee to authorize an earlier
          distribution; and

     (b)  if the present value of the alternate payee's benefits under the Plan
          exceeds $5,000, and the order requires, the alternate payee consents
          to any distribution occurring before the Participant's attainment of
          earliest retirement age, as defined in Code Section 414(p).

Nothing in this section shall permit a Participant a right to receive a
distribution at a time otherwise not permitted under the Plan nor shall it
permit the alternate payee to receive a form of payment not permitted under the
Plan. Provided, however, in addition to the optional forms of retirement benefit
described in Section 6.03, a distribution required to be made under this section
may also be made in a single sum payment.

     The Plan Administrator shall establish reasonable procedures to determine
the qualified status of a domestic relations order. Upon receiving a domestic
relations order, the Plan Administrator promptly shall notify the Participant
and an alternate payee named in the order, in writing, of the receipt of the
order and the Plan's procedures for determining the qualified status of the
order. Within a reasonable period of time after receiving

ARTICLE VI                             17
<PAGE>   22

                          AMEND. NO. 2 PAGE DTD. l-1-98
                          -----------------------------

the domestic relations order, the Plan Administrator shall determine the
qualified status of the order and shall notify the Participant and each
alternate payee, in writing, of its determination. The Plan Administrator shall
provide notice under this paragraph by mailing to the individual's address
specified in the domestic relations order, or in a manner consistent with
Department of Labor regulations. The Plan Administrator may treat as qualified
any domestic relations order entered before January 1, 1985, irrespective of
whether it satisfies all the requirements described in Code Section 414(p).

     If any portion of the Present Value of the Participant's Vested Accrued
Benefit is payable during the period the Plan Administrator is making its
determination of the qualified status of the domestic relations order, a
separate accounting shall be made of the amount payable. If the Plan
Administrator determines the order is a qualified domestic relations order
within 18 months of the date amounts are first payable following receipt of the
order, the payable amounts shall be distributed in accordance with the order. If
the Plan Administrator does not make its determination of the qualified status
of the order within the 18 month determination period, the payable amounts shall
be distributed in the manner the Plan would distribute if the order did not
exist and the order shall apply prospectively if the Plan Administrator later
determines the order is a qualified domestic relations order.

     The Plan shall make payments or distributions required under this section
by separate benefit checks or other separate distribution to the alternate
payee(s).

ARTICLE VI                             17a
<PAGE>   23

                                   ARTICLE VII

                               TERMINATION OF PLAN

     The Employer expects to continue the Plan indefinitely but reserves the
right to terminate the Plan in whole or in part at any time upon giving written
notice to all parties concerned.

     Upon complete termination of the Plan, no further Employees shall become
Participants, and no further Contributions shall be made.

ARTICLE VII                            18
<PAGE>   24

                          AMEND. NO. 2 PAGE DTD. 7-1-98
                          -----------------------------

                                  ARTICLE VIII

                             ADMINISTRATION OF PLAN

SECTION 8.01--ADMINISTRATION.

     The Plan Administrator has complete discretion to construe or interpret the
provisions of the Plan, including ambiguous provisions, if any, to determine
eligibility for benefits, and to determine the type and extent of benefits, if
any, to be provided. The Plan Administrator's decisions in such matters shall be
controlling, binding, and final. In any action to review any decision by the
Plan Administrator, the Plan Administrator shall be deemed to have exercised
discretion properly unless it is proven duly that the Plan Administrator has
acted arbitrarily and capriciously.

     Unless otherwise set out in the Plan or Group Contract, the Plan
Administrator may delegate recordkeeping and other duties which are necessary
for the administration of the Plan to any person or firm which agrees to accept
such duties. The Plan Administrator shall be entitled to rely upon all tables,
valuations, certificates and reports furnished by the consultant or actuary
appointed by the Plan Administrator and upon all opinions given by any counsel
selected or approved by the Plan Administrator.

     The Plan Administrator shall receive all claims for benefits by
Participants, former Participants, Beneficiaries, spouses, and Contingent
Annuitants. The Plan Administrator shall determine all facts necessary to
establish the right of any Claimant to benefits and the amount of those benefits
under the provisions of the Plan. The Plan Administrator may establish rules and
procedures to be followed by Claimants in filing claims for benefits, in
furnishing and verifying proofs necessary to determine age, and in any other
matters required to administer the Plan.

SECTION 8.02--PENSION PLAN INVESTMENT COMMITTEE.

     The Pension Plan Investment Committee of Principal Life Insurance Company
shall consist of a chairperson and other members appointed by the Chief
Executive Officer who shall serve until appointment of a successor or
resignation and without compensation for services as such.

     All expenses incurred shall be paid by the Employer.

     The Committee shall establish and periodically review the investment policy
with respect to Plan assets, and shall periodically report to the Management
Resources Committee.

     All acts and determinations of the Committee shall be duly recorded and all
such records shall be preserved in its custody.

SECTION 8.03--RECORDS.

     All acts and determinations of the Plan Administrator shall be duly
recorded. All these records, together with other documents necessary for the
administration of the Plan, shall be preserved in the Plan Administrator's
custody.

ARTICLE VIII                           19
<PAGE>   25

     Writing (handwriting, typing, printing), photostating, photographing,
microfilming, magnetic impulse, mechanical or electrical recording or other
forms of data compilation shall be acceptable means of keeping records.

SECTION 8.04--INFORMATION AVAILABLE.

     Any Participant in the Plan or any Beneficiary may examine copies of the
Plan description, latest annual report, any bargaining agreement, this Plan, the
Group Contract or any other instrument under which the Plan was established or
is operated. The Plan Administrator shall maintain all of the items listed in
this section in its office, or in such other place or places as it may designate
in order to comply with governmental regulations. These items may be examined
during reasonable business hours. Upon the written request of a Participant or
Beneficiary receiving benefits under the Plan, the Plan Administrator will
furnish him with a copy of any of these items. The Plan Administrator may make a
reasonable charge to the requesting person for the copy.

SECTION 8.05--CLAIM AND APPEAL PROCEDURES.

     A Claimant must submit any required forms and pertinent information when
making a claim for benefits under the Plan.

     If a claim for benefits under the Plan is denied, the Plan Administrator
shall provide adequate written notice to the Claimant whose claim for benefits
under the Plan has been denied. The notice must be furnished within 90 days of
the date that the claim is received by the Plan Administrator. The Claimant
shall be notified in writing within this initial 90-day period if special
circumstances require an extension of time needed to process the claim and the
date by which the Plan Administrator's decision is expected to be rendered. The
written notice shall be furnished no later than 180 days after the date the
claim was received by the Plan Administrator.

     The Plan Administrator's notice to the Claimant shall specify the reason
for the denial; specify references to pertinent Plan provisions on which denial
is based; describe any additional material and information needed for the
Claimant to perfect his claim for benefits; explain why the material and
information is needed; inform the Claimant that any appeal he wishes to make
must be in writing to the Plan Administrator within 60 days after receipt of the
Plan Administrator's notice of denial of benefits and that failure to make the
written appeal within such 60-day period shall render the Plan Administrator's
determination of such denial final, binding and conclusive.

     If the Claimant appeals to the Plan Administrator, the Claimant, or his
authorized representative, may submit in writing whatever issues and comments
the Claimant, or his representative, feels are pertinent. The Claimant, or his
authorized representative may review pertinent Plan documents. The Plan
Administrator shall reexamine ail facts related to the appeal and make a final
determination as to whether the denial of benefits is justified under the
circumstances. The Plan Administrator shall advise the Claimant of its decision
within 60 days of his written request for review, unless special circumstances
(such as a hearing) would make rendering a decision within the 60.day limit
unfeasible. The Claimant must be notified within the 60-day limit if an
extension is necessary. The Plan Administrator shall render a decision on a
claim for benefits no later than 120 days after the request for review is
received.

ARTICLE VIII                           20
<PAGE>   26

SECTION 8.06--DELEGATION OF AUTHORITY.

     All or any part of the administrative duties and responsibilities under
this article may be delegated by the Plan Administrator. The duties and
responsibilities delegated shall be set out here or in a separate written
agreement.

ARTICLE VIII                           21
<PAGE>   27

                                   ARTICLE IX

                               GENERAL PROVISIONS

SECTION 9.01--AMENDMENTS.

     The Board of Directors of the Employer reserves the right and authority to
amend the Plan provisions from time to time. In most instances this authority
has been delegated to the Employer who may amend this Plan at any period of time
as may be determined by Internal Revenue Service regulations) governmental
agency to which the Plan is subject.

SECTION 9.02--PROVISIONS RELATING TO THE INSURER.

     The obligations of an Insurer shall be governed solely by the provisions of
the Group Contract. The Insurer shall not be required to perform any act not
provided in or contrary to the provisions of the Group Contract. See the
CONSTRUCTiON SECTION of this article.

     Any issuer or distributor of investment contracts or securities is governed
solely by the terms of its policies, written investment contract, prospectuses,
security instruments, and any other written agreements entered into with the
Trustee.

     Such Insurer, issuer or distributor is not a party to the Plan or Trust,
nor bound in any way by the Plan or Trust provisions. Such parties shall not be
required to look to the terms of this Plan or Trust, nor to determine whether
the Employer, the Plan Administrator or the Trustee have the authority to act in
any particular manner or to make any contract or agreement.

     Until notice of any amendment or termination of this Plan or Trust has been
received by the Insurer at its home office or an issuer or distributor at their
principal address, they are and shall be fully protected in assuming that the
Plan or Trust has not been amended or terminated and in dealing with any party
acting as Trustee according to the latest information which they have received
at their home office or principal address.

SECTION 9.03--EMPLOYMENT STATUS.

     Nothing contained in this Plan gives an Employee the right to be retained
in the Employer's employ or to interfere with the Employer's right to discharge
any Employee.

SECTION 9.04--RIGHTS TO PLAN ASSETS.

     No Employee shall have any right to or interest in any assets of the Plan
upon termination of his employment or otherwise except as specifically provided
under this Plan, and then only to the extent of the benefits payable to such
Employee in accordance with Plan provisions. Any benefit payable will be
distributed from the general assets of the Employer. Participants have no
greater rights with regard to such benefit than any other general creditor of
the Employer.

     Any final payment or distribution to a Participant or his legal
representative or to any Beneficiaries, spouse or Contingent Annuitant of such
Participant under the Plan provisions shall be in full satisfaction of all
claims

ARTICLE IX                             22
<PAGE>   28

against the Plan, the Plan Administrator, the Trustee, the Insurer, and the
Employer arising under or by virtue of the Plan.

SECTION 9.05--BENEFICIARY.

     Each Participant may name a Beneficiary to receive any death benefit (other
than any income payable to a Contingent Annuitant) that may arise out of his
participation in the Plan, The Participant may change his Beneficiary from time
to time. The Participant's Beneficiary designation and any change of Beneficiary
shall be the same as under the Associated Plan. It is the responsibility of the
Participant to give written notice to the Insurer of the name of the Beneficiary
on a form furnished for that purpose.

     With the Employer's consent, the Plan Administrator may maintain records of
Beneficiary designations for Participants before their Retirement Dates. In that
event, the written designations made by Participants shall be filed with the
Plan Administrator. If a Participant dies before his Retirement Date, the Plan
Administrator shall certify to the Insurer the Beneficiary designation on its
records for the Participant.

     If, at the death of a Participant, there is no Beneficiary named or
surviving, any death benefit under the Group Contract shall be paid under the
applicable provisions of the Group Contract.

SECTION 9.06--NONALIENATION OF BENEFITS.

     Benefits payable under the Plan are not subject to the claims of any
creditor of any Participant, Beneficiary, spouse or Contingent Annuitant. A
Participant, Beneficiary, spouse or Contingent Annuitant does not have any
rights to alienate, anticipate, commute, pledge, encumber or assign any of such
benefits.

SECTION 9.07--CONSTRUCTION.

     The validity of the Plan or any of its provisions is determined under and
construed according to Federal law and, to the extent permissible, according to
the laws of the state in which the Employer has its principal office. In case
any provision of this Plan is held illegal or invalid for any reason, such
determination shall not affect the remaining provisions of this Plan, and the
Plan shall be construed and enforced as if the illegal or invalid provision had
never been included.

     In the event of any conflict between the provisions of the Plan and the
terms of any contract or policy issued hereunder, the provisions of the Plan
control the operation and administration of the Plan.

SECTION 9.08--LEGAL ACTIONS.

     The Plan, the Plan Administrator and the Trustee are the necessary parties
to any action or proceeding involving the assets held with respect to the Plan
or administration of the Plan or Trust. No person employed by the Employer, no
Participant, former Participant or their Beneficiaries or any other person
having or claiming to have an interest in the Plan is entitled to any notice of
process. A final judgment entered in any such action or proceeding shall be
binding and conclusive on all persons having or claiming to have an interest in
the Plan.

ARTICLE IX                             23
<PAGE>   29

                          AMEND. NO. 2 PAGE DTD. l-l-98
                          -----------------------------

SECTION 9.09--WORD USAGE.

     The masculine gender, where used in this Plan, shall include the feminine
gender and the singular words as used in this Plan may include the plural,
unless the context indicates otherwise.

SECTION 9.1O--SMALL AMOUNTS.

     If the Present Value of the Participant's deferred Accrued Benefit does not
exceed $5,000, such Present Value shall be payable in a single sum as of the
Participant's Retirement Date or the date he ceases to be an Active Participant
for any reason other than death. If the Participant's deferred Accrued Benefit
is zero on the date he ceases to be an Active Participant for any reason other
than death, he shall be deemed to have received a single-sum payment of the
Present Value of his deferred Accrued Benefit on such date. This is a small
amounts payment. Such small amounts payment shall be made to the Participant.
Such small amounts payment shall be in full settlement of all benefits otherwise
payable. If the Present Value of the Preretirement Survivor Annuity does not
exceed $5,000, the Present Value of any death benefit shall be payable in a
single sum as of the date the Participant dies if such Present Value is not more
than $5,000. This is a small amounts payment. Such small amounts payment shall
be made to the Participant's Beneficiary (Spouse, if the death benefit is
payable to the Spouse). Such small amounts payment is in full settlement of the
death benefit otherwise payable.

ARTICLE IX                             24
<PAGE>   30

     By executing this Plan, the Primary Employer acknowledges having counseled
to the extent necessary with selected legal and tax advisors regarding the
Plan's legal and tax implications.

     Executed this 21st day of August, 1996.
                   ----        ------    --

                                      PRINCIPAL MUTUAL LIFE INSURANCE COMPANY

                                      By: /s/ MAX F. JOHNSON
                                          -----------------------------------

                                      Vice President - Human Resources
                                      ---------------------------------------
                                                   Title

PLAN EXECUTION                         25<PAGE>   1
                                                                    EXHIBIT 10.7

                              EMPLOYMENT AGREEMENT

     This EMPLOYMENT AGREEMENT (the "Agreement") dated as of 5/19, 2000
("Agreement Date") by and between Principal Mutual Holding Company, an Iowa
mutual holding company (together with all successors thereto, "Mutual"),
Principal Financial Group, Inc., an Iowa corporation, Principal Financial
Services, Inc., an Iowa corporation, and Principal Life Insurance Company, an
Iowa corporation (together with all successors thereto, "Life") (each of the
foregoing referred to individually as a "Company" or collectively as
"Companies"), and J. Barry Griswell ("Executive"), a resident of Iowa. Executive
is currently serving as Chief Executive Officer of the Companies. The parties
desire to enter into this Agreement, which is intended to more fully embody the
agreement among the parties as to Executive's employment. This Agreement
supersedes the letters dated November 13, 1997 and January 26, 2000 from David
J. Drury to Executive. In consideration of the mutual agreements contained
herein, the Company and Executive agree as follows:

                                   ARTICLE I.

                                   DEFINITIONS

     The terms set forth below have the following meanings (such meanings to be
applicable to both the singular and plural forms, except where otherwise
expressly indicated):

     1.1 "Accrued Annual Bonus" means the amount of any Annual Bonus earned but
not yet paid with respect to any Fiscal Year ended prior to the Date of
Termination.

     1.2 "Accrued Base Salary" means the amount of Executive's Base Salary which
is accrued but not yet paid as of the Date of Termination.

     1.3 "Affiliate" means any Person that directly or indirectly controls, is
controlled by, is under common control with, a Company. For the purposes of this
definition, the term "control" when used with respect to any Person means (a)
the power to direct or cause the direction of management or policies of such
Person, directly or indirectly, whether through the ownership of voting
securities, by contract or otherwise, or (b) for purposes of Section 1.11 and
Article VII, the power substantially to influence the direction of strategic
management policies of such Person, and provided a Company has a direct or
indirect commercial relationship with such Person, all as determined by the
Human Resources Committee of the Board or its successor.

     1.4 "Agreement" -- see the introductory paragraph of this Agreement.

     1.5 "Agreement Date" -- see the introductory paragraph of this Agreement.

     1.6 "Anniversary Date" means any annual anniversary of the Agreement Date.

     1.7 "Annual Bonus" -- see Section 4.2.

     1.8 "Base Salary" -- see Section 4.1.

<PAGE>   2
     1.9  "Beneficiary" -- see Section 9.6.

     1.10 "Board" means the Board of Directors of Mutual unless the context
indicates otherwise.

     1.11 "Cause" means any of the following:

          (a) Executive's conviction of, plea of guilty to, or plea of nolo
     contendere to a felony or misdemeanor (other than a traffic-related felony
     or misdemeanor) that involves fraud, dishonesty or moral turpitude,

          (b) any willful action by Executive resulting in criminal, civil or
     internal Company conviction, sanction or judgment under Federal or State
     workplace harassment or discrimination laws or internal Company workplace
     harassment, discrimination or other workplace policy under which such
     action could be and could reasonably be expected to be grounds for
     immediate termination of a member of Senior Management (other than mere
     failure to meet performance goals, objectives, or measures),

          (c) Executive's habitual abuse of or addiction to alcohol or
     controlled substances, which interferes with the performance of
     Executive's duties,

          (d) Executive's willful and intentional material breach of this
     Agreement,

          (e) Executive's habitual neglect of duties, (other than resulting from
     Executive's incapacity due to physical or mental illness) which results in
     substantial financial detriment to any of the Companies or any Affiliate,

          (f) Executive's personally engaging in such conduct as results or is
     likely to result in (i) substantial damage to the reputation of any of the
     Companies or any Affiliate, as a respectable business, and (ii) substantial
     financial detriment (whether immediately or over time) to any of the
     Companies or any Affiliate,

          (g) Executive's willful and intentional material misconduct in the
     performance or gross negligence of his duties under this Agreement that
     results in substantial financial detriment to a Company or any Affiliate,

          (h) Executive's intentional failure (including a failure caused by
     gross negligence) to cause any of the Companies to comply with applicable
     law and regulations material to the business of such Company which results
     in substantial financial detriment to any of the Companies or any
     Affiliate, or

          (i) Executive's willful or intentional failure to comply in all
     material respects with a specific written direction of the Board that is
     consistent with normal business practice and not inconsistent with this
     Agreement and Executive's responsibilities hereunder.

For purposes of clauses (d), (e), (f), (g) and (h) of the preceding sentence,
Cause shall not mean the mere existence or occurrence of any one or more of the
following, and for purposes of clause

                                      -2-
<PAGE>   3
(i) of the preceding sentence, Cause shall not mean the mere existence or
occurrence of item (iv) below:

               (i) bad judgment,

               (ii) negligence, other than Executive's habitual neglect of
          duties or gross negligence;

               (iii) any act or omission that Executive believed in good faith
          to have been in the interest of the Company (without intent of
          Executive to gain therefrom, directly or indirectly, a profit to
          which he was not legally entitled), or

               (iv) failure to meet performance goals, objectives or measures;

provided, that for purposes of clauses (c), (d), (e), (f), (g), (h) and (i), any
act or omission that is curable shall not constitute Cause unless the Company
gives Executive written notice of such act or omission that specifically refers
to this Section and, within 10 days after such notice is received by Executive,
Executive fails to cure such act or omission. Notwithstanding anything to the
contrary herein, any act or omission of which any member of the Board who is not
a party to such act or omission has had actual knowledge for at least six months
shall not constitute "Cause" under any clause of this Section.

     1.12 "Code" means the Internal Revenue Code of 1986, as amended from time
to time.

     1.13 "Company" -- see the introductory paragraph to this Agreement.

     1.14 "Competitive Business" means as of any date any corporation or other
Person (and any branch, office or operation thereof) that engages in, or
proposes to engage in:

          (a) the underwriting, reinsurance, marketing or sale of(i) any form of
     insurance of any kind that any of the Companies as of such date does, or
     has under active consideration a proposal to, underwrite, reinsure, market
     or sell (any such form of insurance, a "Company Insurance Product") or (ii)
     any other form of insurance that is marketed or sold in competition with
     any Company Insurance Product, or

          (b) the sale of financial services which involve (i) the management,
     for a fee or other remuneration, of an investment account or fund (or
     portions thereof or a group of investment accounts or funds), (ii) the
     giving of advice, for a fee or other remuneration, with respect to the
     investment and/or reinvestment of assets or funds (or any group of assets
     or funds), or (iii) financial planning services, or

          (c) the design, implementation and administration of employee benefit
     plans, including plan documents, employee communications, reporting,
     disclosure, financial advice, investment advice, and fiduciary services, or

          (d) any other business that as of such date is a direct and material
     competitor of a Company and its Affiliates to the extent that prior to the
     Date of Termination any of

                                      -3-
<PAGE>   4
     the Companies or its Affiliates engaged at any time within 12 months in or
     had under active consideration a proposal to engage in such competitive
     business;

and that is located anywhere in the United States or anywhere outside of the
United States where such Company or its Affiliates is then engaged in, or has
under active consideration a proposal to engage in, any of such activities.

     1.15 "Date of Termination" means the date of the receipt of the Notice of
Termination by Executive (if such Notice is given by or on behalf of Mutual) or
by Mutual (if such Notice is given by Executive), or any later date, not more
than 15 days after the giving of such Notice, specified in such notice, as of
which Executive's employment with the Companies shall be terminated; provided,
however, that:

               (i) if Executive's employment is terminated by reason of death,
          the Date of Termination shall be the date of Executive's death; and

               (ii) if Executive's employment is terminated by reason of
          Disability, the Date of Termination shall be the 30th day after
          Executive's receipt of the physician's certification of Disability,
          unless, before such date, Executive shall have resumed the full-time
          performance of Executive's duties; and

               (iii) if Executive terminates his employment without Good Reason,
          the Date of Termination shall be the 30th day after the giving of such
          Notice; and

               (iv) if no Notice of Termination is given, the Date of
          Termination shall be the last date on which Executive is employed by
          the Companies.

     1.16 "Demutualization" means a conversion of Mutual from a company
organized as a mutual company to a stock company, whether through
reorganization, merger, consolidation, re-incorporation or otherwise.

     1.17 "Disability" means a mental or physical condition which renders
Executive . unable or incompetent to carry out the material job responsibilities
which such Executive held or the material duties to which Executive was assigned
at the time the disability was incurred, which has existed for at least six
months and which in the certified opinion of a physician mutually agreed upon by
Mutual and Executive (which agreement neither party shall unreasonably withhold)
is expected to be permanent or to last for an additional duration in excess of
six months.

     1.18 "Employment Period" -- see Section 3.1.

     1.19 "Executive" -- see the introductory paragraph of this Agreement.

     1.20 "Fiscal Year" means the fiscal year used in connection with the
preparation of the consolidated financial statements of Mutual.

     1.21 "Good Reason" means the occurrence of any one of the following events
unless Executive specifically agrees in writing that such event shall not be
Good Reason:

                                      -4-
<PAGE>   5
          (a) any material breach of the Agreement by any of the Companies,
     including any of the following, each of which shall be deemed material:

               (i) any adverse change in the title, status, responsibilities,
          authorities or perquisites of Executive;

               (ii) any failure of Executive to be nominated, appointed or
          elected and to continue to be nominated, re-elected, or re-appointed
          as President and Chief Executive Officer of Mutual;

               (iii) any failure of Executive to be nominated, appointed or
          elected and to continue to be nominated, re-elected, or re-appointed
          as a member of the Board of Directors of Mutual or the Board of
          Directors of Life;

               (iv) causing or requiring Executive to report to anyone other
          than the Board of Mutual;

               (v) assignment to Executive of duties materially inconsistent
          with his position and duties described in this Agreement, including
          status, offices, or responsibilities as contemplated under Section 2.1
          or any other action by any of the Companies which results in an
          adverse change in such position, status, offices, titles or
          responsibilities;

               (vi) any reduction or failure to pay Executive's Base Salary in
          violation of Section 4.1 or his Annual Bonus in violation of Section
          4.2;

               (vii) any failure to grant or pay an LTIP Award or LTIP Bonus
          required under Section 4.3; or

               (viii) any reduction in bonus or incentive (including without
          limitation, the LTIP) opportunity; provided that no such reduction
          shall be deemed to occur merely because the Company revises or
          modifies the structure of or performance factors taken into account
          (or the degree to which any such performance factors are taken into
          account) under any bonus or incentive (including without limitation,
          the LTIP) plan or arrangement; provided further that the Executive
          shall not be treated less favorably than the other members of Senior
          Management;

provided that the creation, existence or appointment of a Chief Executive
Officer other than Executive of any subsidiary of Mutual shall not be deemed to
be Good Reason if such other Chief Executive Officer reports, directly or
indirectly, to Executive; and provided, further, that no act or omission
described in clauses (i) through (viii) of this Section shall constitute Good
Reason unless Executive gives Mutual written notice of such act or omission and
the Company fails to cure such act or omission within 30-days after delivery of
such notice (except that Executive shall not be required to provide such notice
in case of intentional acts or omissions by a Company or more than once in cases
of repeated acts or omissions); or

                                      -5-
<PAGE>   6
          (b) the failure of Mutual to assign this Agreement to its successor or
     the failure of a successor of Mutual, Life or the Company to expressly
     assume and agree to be bound by the Agreement; or

          (c) relocation of the Company's executive offices or Executive's own
     office location to a location that is outside the United States;

provided, however, that a Demutualization in and of itself shall not constitute
Good Reason. In the event of an occurrence or omission constituting Good Reason,
Executive shall not be entitled to terminate his employment for Good Reason
unless within 3 months after Executive first obtains actual knowledge of such an
event constituting Good Reason, he notifies Mutual of the events constituting
such Good Reason and of his intention to terminate employment for Good Reason by
a Notice of Termination.

     1.22 "including" means including without limitation.

     1.23 "Life" -- see the introductory paragraph to this Agreement.

     1.24 "LTIP" means, as applicable, the Long-Term Performance Plan of Life,
the 1999 Long-Term Performance Plan, and any of their respective successors or
other long-term incentive plans in which Senior Management is generally eligible
to participate.

     1.25 "LTIP Award" means an incentive compensation opportunity granted under
the LTIP.

     1.26 "LTIP Bonus" means the amount paid or earned in respect of an LTIP
Award.

     1.27 "LTIP Performance Period" means any performance period designated in
accordance with any LTIP approved by the Board of Life or any committee of the
Board of Life.

     1.28 "Mutual" -- see the introductory paragraph to this Agreement. If,
prior to the Date of Termination, Mutual Demutualizes (as defined herein), the
term "Mutual" shall, from and after the date of the Demutualization is
effective, refer to the Demutualized entity.

     1.29 "Notice of Termination" means a written notice of termination of
Executive's employment given in accordance with Section 9.12 by Mutual on behalf
of the Companies, or by Executive, as the case may be, which sets forth (a) the
specific termination provision in this Agreement relied upon by the party giving
such notice, (b) in reasonable detail the specific facts and circumstances
claimed to provide a basis for such Termination of Employment, and (c) if the
Date of Termination is other than the date of receipt of such Notice of
Termination, the Date of Termination.

     1.30 "Person" means any individual, sole proprietorship, partnership, joint
venture, limited liability company, trust, unincorporated organization,
corporation, institution, public benefit corporation, entity or government
instrumentality, division, agency, body or department.

     1.31 "Resent Value Actuarial Equivalent" means an amount equal in value to
a benefit payable in a specified form on (or commencing on) a specified date,
based on the method

                                      -6-
<PAGE>   7
specified in the Supplemental Executive Retirement Plan for Employees, as
established January 1,1982, as amended and restated from time to time ("SERP"),
under the definition of "Actuarial Equivalent" (which refers to the definition
of such term in the Principal Pension Plan as established April 1, 1940, as
amended and restated from time to time) or the successor plan to the SERP,
provided that if the SERP no longer exists or such method is no longer specified
in the SERP (whether by reference to another plan or otherwise), then based on
the assumed rates of interest and mortality (weighted .65 male and .35 female)
under Section 417(e) of the Code for the month (generally published at the
beginning of the following month) prior to the month of the Executive's Date of
Termination.

     1.32 "Prorata Annual Bonus" means the product of(i) the Target Annual Bonus
(provided that no effect shall be given to any reduction in such Target Annual
Bonus that would qualify as Good Reason if Executive were to terminate his
employment on account thereof) multiplied by (ii) a fraction of which the
numerator is the number of days which have elapsed in such Fiscal Year through
the Date of Termination and the denominator of which is 365.

     1.33 "Retirement" means any Termination of Employment after Executive
reaches age 57, other than for Cause and other than for Good Reason.

     1.34 "Senior Management" means Executive Vice Presidents or higher level
officers of Mutual in the United States.

     1.35 "Target Annual Bonus" -- see Section 4.2.

     1.36 "Target Annual Goals" -- see Section 4.2.

     1.37 "Tax Gross-Up Payment" means an amount payable to Executive such that
after payment of Taxes on such amount there remains a balance sufficient to pay
the Taxes being reimbursed.

     1.38 "Taxes" means the incremental federal, state, local and foreign
income, employment, exercise other taxes payable by Executive with respect to
any applicable item of income.

     1.39 "Termination For Good Reason" means a Termination of Employment by
Executive for a Good Reason.

     1.40 "Termination of Employment" means a termination by the Companies or
Executive of Executive's employment with the Companies and their Affiliates.

     1.41 "Termination Without Cause" means a Termination of Employment by the
Companies for any reason other than Cause or Executive's death or Disability.

     1.42 "Voting Securities" of a corporation means securities of such
corporation that are entitled to vote generally in the election of directors of
such corporation.

                                      -7-
<PAGE>   8
     1.43 "Withholding Taxes" means any federal, state, provincial, local or
foreign withholding taxes and other deductions required to be paid in accordance
with applicable law by reason of compensation received pursuant to this
Agreement.

                                   ARTICLE II.

                                     DUTIES

     2.1 Duties. Mutual shall continue to employ Executive during the Employment
Period as its President and Chief Executive Officer, and Executive shall have
the authority, duties, and responsibilities as are commensurate and consistent
with such position and title, and as provided in, Mutual's by-laws. The Parties
acknowledge that as of the Agreement Date, Executive also serves as President
and Chief Executive Officer of Life. It is contemplated that, in connection with
each annual meeting or action by written consent in lieu thereof of members (or,
after any Demutualization, stockholders or their equivalent) of Mutual and of
Life during the Employment Period, the members (or, if applicable, stockholders)
of Mutual and of Life, respectively will elect Executive to their respective
Boards. Executive shall report solely to the Board of Mutual. During the
Employment Period, Executive shall be the most senior executive of Mutual and
shall have broad discretion and authority to manage and direct the day-to-day
affairs and operations of the Companies in compliance with applicable law,
including the sole authority to direct the strategic direction of the Companies,
except to the extent required in connection with the exercise by the Board of
its corporate governance duties and responsibilities under Mutual's by-laws and
other applicable law. During the Employment Period, Executive shall follow the
directives of the Board and shall meet with the Board on a periodic basis
sufficient to enable the Board to fulfill its corporate governance
responsibilities. All operating, staff, other executives, and divisions of the
Companies, excluding the governmental relations department which may at the
Board's discretion report to the Board or its delegate, shall report solely to
Executive, either directly or indirectly through subordinates of Executive who
report to Executive. During the Employment Period, Executive shall perform the
duties assigned to him hereunder, and, subject to Section 2.2, shall devote his
till business time, attention and effort, excluding any periods of disability,
vacation, or sick leave to which Executive is entitled, to the affairs of the
Companies and shall use his best efforts to promote the interests of the
Companies. The Executive acknowledges that his business time is not limited to a
fixed number of hours per week.

     2.2 Other Activities. Executive may serve on corporate, civic or charitable
boards or committees, deliver lectures, fulfill speaking engagements or teach at
educational institutions, and manage personal investments; provided that such
activities do not individually or in the aggregate significantly interfere with
the performance of Executive's duties under this Agreement.

                                  ARTICLE III.

                                EMPLOYMENT PERIOD

     3.1 Employment Period. Subject to the termination provisions hereinafter
provided, the term of Executive's employment under this Agreement (the
"Employment Period") shall

                                      -8-
<PAGE>   9
begin on the Agreement Date and end on the Anniversary Date which is three years
tier such date or, if later, such later date to which the Employment Period is
extended pursuant to the following sentence. On the first anniversary of the
Agreement Date and thereafter, the Employment Period shall be automatically
extended each day by one day to create a new two year term until, at any time
after the first anniversary of the Agreement Date, Mutual delivers written
notice (an "Expiration Notice") to Executive or Executive delivers an Expiration
Notice to Mutual, in either case, to the effect that the Agreement shall expire
on a date specified in the Expiration Notice (the "Expiration Date") that is not
less than two years after the date the Expiration Notice is delivered to Mutual
or the Executive, respectively; provided, however, the Employment Period shall
automatically end on Executive's 65th birthday (March 15, 2014) unless Mutual
delivers, any time prior to one year before such date of expiration, written
notice to Executive that the Agreement shall not so expire and shall instead,
subject to the prompt consent of Executive, expire (unless further extended by
mutual consent) on a date specified ill such notice. The employment of Executive
by Mutual shall not be terminated other than in accordance with Article VI.

                                   ARTICLE IV.

                                  COMPENSATION

     4.1 Salary. Executive shall be paid in accordance with normal payroll
practices (but not less frequently than monthly) an annual salary at a rate of
$850,000 per year ("Base Salary"). During the Employment Period, the Base Salary
shall be reviewed periodically and may be increased from time to time as shall
be determined by the Board, in accordance with normal Company administrative
practices for Senior Management after consultation with Executive. After any
such increase, the term "Base Salary" shall thereafter refer to the increased
amount. Any increase in Base Salary shall not. limit or reduce any other
obligation of the Company to Executive under this Agreement. Base Salary shall
not be reduced at any time without the express written consent of Executive;
provided that the Board may, in its discretion restructure or alter the time of
payment of Base Salary after Demutualization in order to enhance the
deductibility thereof, provided there is no economic detriment to the Executive
and that the Board and Executive shall cooperate in good faith in such
restructuring or alteration.

     4.2 Annual Bonus.

          (a) Executive shall be paid an annual bonus ("Annual Bonus") in
     accordance with the terms hereof for each Fiscal Year which begins or ends
     during the Employment Period. Executive shall be eligible for an Annual
     Bonus based upon target performance goals (the "Target Annual Goals"), as
     determined by the Board on an annual basis, after consultation with
     Executive and in accordance with normal Company administrative practices
     for Senior Management, which provides for a payment opportunity of at least
     the highest target level generally available to Senior Management under any
     Company annual bonus plan ("Target Annual Bonus") upon the Executive's
     achievement of the Target Annual Goals. The parties acknowledge that, as of
     the Agreement Date, the Annual Bonus is payable in accordance with the
     Company plan named PrinPay. The appropriate Board may restructure or alter
     the time of payment of the Annual Bonus in order to enhance the
     deductibility thereof after Demutualization, provided there is no

                                      -9-
<PAGE>   10
     economic detriment to the Executive and that the Board and Executive shall
     cooperate in good faith in such restructuring or alteration.

          (b) The entire Annual Bonus that is payable to Executive with respect
     to ti Fiscal Year shall be paid in cash, or such other medium as is
     generally applicable to members of Senior Management, as soon as
     practicable after the appropriate Board has determined whether and the
     degree to which Target Annual Goals have been achieved following the close
     of such Fiscal Year. In any event, the entire Annual Bonus that is payable
     to Executive with respect to a Fiscal Year shall be paid at the same time
     as the dual Bonus is paid to the other members of Senior Management, but in
     any event no later than 90 days after the end of the Fiscal Year.

     4.3 Long-Term Incentive Plan Bonus and Other Incentive Compensation.
Executive shall have the opportunity to participate in the LTIP (if such plan
exists) and any other incentive compensation plan or program available to Senior
Management at the highest available level under such plan or program. The
appropriate Board may restructure or alter the time of payment of amounts under
the LTIP or other incentive compensation plan or program in order to enhance the
deductibility thereof after Demutualization, provided there is no economic
detriment to the Executive and that the Board and Executive shall cooperate in
good faith in such restructuring or alteration.

     4.4 Savings and Retirement Plans. Executive shall be eligible to
participate during the Employment Period in any Company's savings and retirement
plans, practices, policies and programs, in accordance with the terms thereof,
at the highest available level, if any, applicable from time to time to members
of Senior Management, including any supplemental executive retirement plan.

                                   ARTICLE V.

                                 OTHER BENEFITS

     5.1 Welfare Benefits. During the Employment Period, Executive and his
family shall be eligible to participate in at the highest level, and shall
receive all benefits under, any Company's welfare benefit plans, practices,
policies and programs provided or made generally available by the Company to
Senior Management (including medical, prescription, dental, disability, salary
continuance, employee life, group life, dependent life, accidental death and
travel accident insurance plans and programs), in accordance with their terms as
in effect from time to time. Notwithstanding the foregoing, the Companies shall
provide Executive with disability insurance coverage on terms no less favorable
to Executive than those in effect on the Agreement Date (including, without
limitation, percentage of salary provided as a disability benefit, but subject
to any maximum limitation on the dollar amount applicable to Senior Management,
provided that such limitation shall not be applied to reduce the dollar amount
of the monthly amount of Executive's long term disability benefit below
$46,630.87). In addition, to the extent not covered in the first sentence of
this Section 5.1, Executive shall be entitled to reimbursement for an annual
executive physical examination at the Mayo Clinic or equivalent medical facility
of his choosing.

                                      -10-
<PAGE>   11
     5.2 Fringe Benefits. During the Employment Period, Executive shall be
entitled to fringe benefits generally applicable to Senior Management in
accordance with their terms as in effect from time to time.

     5.3 Vacation. During the Employment Period, Executive shall be entitled to
paid vacation time under the plans, practices, policies, and programs generally
applicable to members of Senior Management in accordance with their terms as in
effect from time to time.

     5.4 Expenses. Executive shall be promptly reimbursed for all actual and
reasonable employment-related business expenses he incurs during the Employment
Period in accordance with any Company's practices, policies, and procedures
generally applicable to members of Senior Management in accordance with their
terms as in effect from time to time, including the timely submission of
required receipts and accountings. In addition, Executive shall be entitled to
first-class air travel for business. Notwithstanding the foregoing, no expense
shall be reimbursed more than once.

                                   ARTICLE VI.

                              TERMINATION BENEFITS

     6.1 Termination for Cause or Other than for Good Reason, etc.

          (a) If Mutual terminates Executive's employment with the Companies for
     Cause or Executive terminates his employment other than for Good Reason,
     death or Disability, the Executive shall be entitled to receive immediately
     after the Date of Termination a lump sum amount equal to the sum of
     Executive's Accrued Base Salary and Accrued Annual Bonus, and Executive
     shall not be entitled to receive any severance or other payment, other than
     compensation and benefits which relate to or derive from Executive's
     employment with the Companies on or prior to the Date of Termination
     (including, without limitation, any deferrals under the LTIP) and which
     are otherwise payable in case of termination for Cause or other than for
     Good Reason, death or Disability, as applicable.

          (b) Executive's employment may be terminated for Cause only if(i)
     Mutual provides Executive (before the Date of Termination) with written
     notice of the Board meeting referred to in clause (ii) of this Section
     6.1(b) at least twenty days prior to such meeting and specifies in detail
     in writing the basis of a claim of Cause and provides Executive, with or
     without counsel, at Executive's election, an opportunity to be heard and
     present arguments and evidence on Executive's behalf at such meeting, (ii)
     the Mutual Board, by affirmative vote of not less than 2/3 of the entire
     membership of the Mutual Board (excluding the Executive's vote from any
     such determination) that the acts or omissions constitute Cause which
     Executive failed to cure after being given an opportunity to cure if
     required by Section 1.11, and to the effect that Executive's employment
     should be terminated for Cause and (iii) Mutual thereafter provides
     Executive a Notice of Termination which specifies in detail the basis of
     such Termination of Employment for Cause. Nothing in this Section 6.1 (b)
     shall preclude the Board, by majority vote, from suspending Executive from
     his duties, with pay at any time.

                                      -11-
<PAGE>   12
          6.2 Termination for Retirement, Death or Disability. If, before the
     end of the Employment Period, Executive's employment terminates due to his
     Retirement, death or Disability, Executive or his Beneficiaries, as the
     case may be, shall be entitled to receive immediately after the Date of
     Termination, a lump sum amount which is equal to the sum of Executive's
     Accrued Base Salary, Accrued Annual Bonus, and Prorata Annual Bonus.
     Executive's LTIP Bonus shall be paid according to the terms of the LTIP.

          6.3 Termination Without Cause or for Good Reason. In the event of a
     Termination Without Cause or a Termination for Good Reason (in either case
     occurring during the Employment Period), Executive shall be entitled to
     receive the following:

               (a) promptly after the Date of Termination, (but in no event
          later than ten business days after the Date of Termination) a lump sum
          amount equal to the sum of Executive's Accrued Base Salary, Accrued
          Annual Bonus and Prorata Annual Bonus;

               (b) promptly after the Date of Termination, (but in no event
          later than ten business days after the Date of Termination), a lump
          sum amount equal to the product of (i) the sum of Base Salary plus
          Target Annual Bonus for the Fiscal Year during which the Date of
          Termination occurs (provided that no effect shall be given to any
          reduction in Target Annual Bonus that would qualify as Good Reason if
          Executive were to terminate his employment on account thereof), plus
          the LTIP Bonus most recently earned prior to the Date of Termination,
          and multiplied by (ii) two;

               (c) for each LTIP Performance Period that is unexpired as of the
          Date of Termination, Executive shall be treated as he would be treated
          under the LTIP effect on the Agreement Date if (i) he terminated
          employment at age 57 other than for cause (as defined in the LTIP) and
          (ii) he retired ("LTIP Benefit"); provided that the discretion of the
          Committee shall not be exercised so as to treat Executive less
          favorably than other members of Senior Management; provided further
          that if such payment cannot be provided under the terms of the LTIP,
          then the Company shall pay amounts equal to such LTIP Benefit,
          reduced by amounts actually payable under the LTIP at the same time as
          they otherwise would have been paid;

               (d) the benefits specified in Section 5.1, except to the extent
          provided under Section 6.3(e), and Section 5.2 to which Executive is
          entitled as of the Date of Termination, for two years following his
          Date of Termination, subject to the terms of applicable plans,
          programs or policies; provided that the Executive shall pay the same
          amount for such benefits as covered members of Senior Management who
          are actively employed would pay; provided further that any coverage
          required to be offered by the Consolidated Omnibus Budget
          Reconciliation Act of 1985, as amended, shall begin after such
          benefits otherwise cease hereunder;

               (e) if the Date of Termination occurs prior to the Executive's
          57th birthday, the benefits equivalent to those payable under the
          Principal Welfare Benefit Plan for Employees calculated under the
          terms of such plan as if the Date of Termination occurred after
          Executive's 57th birthday, reduced by amounts actually payable under
          such plan, and if either Executive or the Company reasonably believes
          it is likely that such benefits

                                      -12-
<PAGE>   13

          cannot be provided on a tax-favored basis, the Company shall pay the
          cost of the insurance premium for such benefits;

               (f) if the Date of Termination occurs prior to Executive's 57th
          birthday, promptly, but in no event later than ten business days after
          the Date of Termination, an amount equal to the Present Value
          Actuarial Equivalent of the benefits to which Executive would be
          entitled if he had reached his 57th birthday prior to his Date of
          Termination and if he had accrued a number of years of service that is
          equal to the number of years of service he would have accrued had his
          Date of Termination been his 57th birthday under the Principal Pension
          Plan for Employees, and the Supplemental Executive Retirement Plan for
          Employees, reduced by the Present Value Actuarial Equivalent of
          benefits actually payable under such plans calculated as though such
          plans permitted payment at the Executive's Date of Termination by
          applying an early retirement factor that declines by 5% (from the
          factor utilized for termination of employment at Executive's actual
          age at termination of employment and upon commencement of early
          retirement at the earliest retirement age) for each year that
          Executive's Date of Termination precedes the earliest age at which
          early retirement is actually permitted under such plan;

               (g) all outstanding stock options, stock appreciation rights, and
          restricted stock shall become vested; and

               (h) key executive level outplacement services, the provider of
          which shall be selected by Executive, up to a maximum of $10,000;
          provided that in no event shall any amount be payable to ,Executive in
          lieu of his receipt of such services.

Notwithstanding anything herein to the contrary, the benefits provided in
Section 6.3 shall be provided only upon Executive's execution of a release and
waiver as described in Section 6.5.

     6.4 Other Rights. This Agreement shall not prevent or limit Executive's
continuing or future participation in any benefit, bonus, incentive or other
plan, program or policy provided by the Company and for which Executive may
qualify, and shall not impair the Company's rights to amend or terminate any
benefit, bonus, incentive or other plan program or policy; provided however that
no such amendment or termination shall treat Executive less favorably than other
Senior Management and Executive's benefits, bonus and incentives in the
aggregate shall not be reduced. Amounts which are vested benefits or which
Executive is otherwise entitled to receive under any plan, program or policy and
any other payment or benefit required by law at or after the Date of Termination
shall be payable in accordance with such plan, program or policy or applicable
law except as expressly modified by this Agreement.

     6.5 Waiver and Release. Notwithstanding anything herein to the contrary,
upon any Termination of Employment (other than due to death)

          (a) the Executive shall execute a release and waiver in form mutually
     agreed by Executive and the Board of Mutual (which agreement neither party
     shall unreasonably withhold) which releases, waives, and forever discharges
     the Companies, their Affiliates, and their respective subsidiaries,
     affiliates, employees, officers, shareholders, members,

                                      -13-
<PAGE>   14
     partners, directors, agents, attorneys, predecessors, successors and
     assigns, from and against any and all claims, liabilities, demands, causes
     of action, costs, expenses, attorneys' fees, damages and obligations of
     every kind and nature in law, equity, or otherwise, known and unknown,
     suspected and unsuspected, disclosed and undisclosed, including but not
     limited to any and all such claims and demands directly or indirectly
     arising out of or in any way connected with the Executive's employment with
     and services as a director of the Companies and their Affiliates; claims or
     demands related to compensation or other amounts under any compensatory
     arrangement, stock, stock options, or any other ownership interests in any
     of the Companies or any Affiliate, vacation pay, fringe benefits, expense
     reimbursements, severance benefits, or any other form of compensation or
     equity; claims pursuant to any federal, state, local law, statute of cause
     of action including, but not limited to, the federal Civil Rights Act of
     1964, as amended; the federal Age Discrimination in Employment Act of 1967,
     as amended; the federal Americans with Disabilities Act of 1990; tort law,
     contract law; wrongful discharge, discrimination; defamation; harassment;
     or emotional distress; provided that Executive's waiver and release shall
     not relieve the Companies from any of the following obligations, to the
     extent they are to be performed after the date of the release and waiver:
     (i) payment of amounts due under Sections 6.1, 6.2 or 6.3, as applicable,
     (ii) any obligations under the. second sentence of Section 6.4, and (iii)
     payment of any gross-up amount due under Article VIII; and provided
     further that (x) neither party shall release the other from his or its
     obligations under Article IX of this agreement, to the extent such
     obligations are to be performed after the Date of Termination, and (y)
     Executive shall not be precluded from defending against Cause Claims (as
     defined in Section 6.5(b)); and

          (b) the Company shall execute a release and waiver in form mutually
     agreed by Executive and the Board of Mutual (which agreement neither party
     shall unreasonably withhold) which releases, waives, and forever discharges
     the Executive and his executors, administrators, successors and assigns,
     from and against any and all claims, liabilities, demands, causes of
     action, costs, expenses, attorneys' fees, damages and obligations of every
     kind and nature in law, equity, or otherwise, known and unknown, suspected
     and unsuspected, disclosed and undisclosed, including but not limited to
     any and all such claims and demands directly or indirectly arising out of
     or in any way connected with the Executive's employment with or service as
     a director of the Companies and their Affiliates, but excluding any such
     claims liabilities, demands, causes of action, costs, expenses, attorneys'
     fees, damages or obligations arising out of or in any way connected with
     events, acts or conduct giving rise to or in any way connected with
     Executive's Termination of Employment for Cause ("Cause Claims"), provided,
     however, that (i) neither party shall release the other from his or its
     obligations under Article IX of this agreement, to the extent such
     obligations are to be performed after the Date of Termination, and (ii)
     Executive shall not be precluded from defending against Cause Claims.

          (c) Executive hereby agrees that the execution of this Agreement is
     adequate consideration for the execution of such a release, and hereby
     acknowledges that the Companies would not have executed this Agreement had
     Executive not agreed to execute such a release.

                                      -14-
<PAGE>   15

                                  ARTICLE VII.

                              RESTRICTIVE COVENANTS

     7.1 Non-Competition. Executive shall not at any time during the period
beginning on the Agreement Date and ending on the second anniversary of the Date
of Termination (whether or not during the Term), directly or indirectly, in any
capacity:

          (a) engage or participate in, become employed by, serve as a director
     of, or render advisory or consulting or other services in connection with,
     any Competitive Business; provided, however, that after the Date of
     Termination this Section 7.1(a) shall not preclude Executive from being an
     employee of, or consultant to, any business unit of a Competitive Business
     if (i) such business unit does not qualify as a Competitive Business in its
     own right and (ii) Executive does not have any direct or indirect
     involvement in, or responsibility for, any operations of such Competitive
     Business that cause it to qualify as a Competitive Business; or

          (b) make or retain any financial investment, whether in the form of
     equity or debt, or own any interest, in any Competitive Business; provided,
     however, that nothing in this subsection shall restrict Executive from
     making an investment in any Competitive Business if such investment (i)
     represents no more than 1% of the aggregate market value of the outstanding
     capital stock or debt (as applicable) of such Competitive Business, (ii)
     does not give Executive any right or ability, directly or indirectly, to
     control or influence the policy decisions or management of such Competitive
     Business, and (iii) does not create a conflict of interest between
     Executive's duties under this Agreement and his interest in such
     investment.

     7.2 Non-Solicitation. Executive shall not at any time during the period
beginning on the Agreement Date and ending on the second anniversary of the Date
of Termination (whether or not during the Term), directly or indirectly:

          (a) other than in connection with the good-faith performance of his
     duties as an officer of any of the Companies, encourage any employee or
     agent of the Companies or any Affiliate to terminate his relationship with
     any of the Companies or any Affiliate;

          (b) solicit the employment of or the engagement as a consultant or
     advisor of, any employee or agent of any of the Companies or any Affiliate
     (other than by the Company or an Affiliate), or cause or encourage any
     Person to do any of the foregoing;

          (c) establish (or take preliminary steps to establish) a business
     with, or encourage others to establish (or take preliminary steps to
     establish) a business with, any employee or agent of the Company or any
     Affiliate; or

          (d) interfere with the relationship of any of the Companies with, or
     endeavor to entice away from any of the Companies, any Person who or which
     at any time during the period commencing one year prior to the Agreement
     Date was or is a material client or material supplier of, or maintained a
     material business relationship with, any of the Companies or an Affiliate.

                                      -15-
<PAGE>   16

     7.3 Confidentiality The Executive acknowledges that in the course of
performing services for the Companies and Affiliates, he may create, develop,
learn of, receive or contribute non-public information, ideas, processes,
methods, designs, devices, inventions, data, models and other information
relating to the Companies and their Affiliates or their products, services,
businesses, operations, employees or customers, whether in tangible or
intangible form, and that the Companies or their Affiliates desire to protect
and keep secret and confidential, including trade secrets and information from
third parties that the Companies or their Affiliates are obligated to keep
confidential ("Confidential Information"). Confidential Information shall not
include: (i) information that is or becomes generally known through no fault of
Executive; (ii) information received from a third party outside of the Company
that was disclosed without a breach of any confidentiality obligation; or (iii)
information approved for release by written authorization of the Company. The
Executive recognizes that all such Confidential Information is the sole and
exclusive property of the Companies and their Affiliates, and that disclosure of
Confidential Information would cause damage to the Companies and their
Affiliates. The Executive agrees that, except as required by the duties of his
employment with any of the Companies or any of their and/or its Affiliates and
except in connection with enforcing the Executive's rights under this Agreement
or if compelled by a court or governmental agency, in each case provided that
prior written notice is given to Mutual, he will not, without the consent of
Mutual, willfully disseminate or otherwise disclose, directly or indirectly, any
Confidential Information obtained during his employment with any of the
Companies or their Affiliates, and will take all necessary precautions to
prevent disclosure, to any unauthorized individual or entity inside or outside
the Company, and will not use the Confidential Information or permit its use for
the benefit of Executive or any other person or entity other than the Companies
or the Affiliates. These obligations shall continue during and after the
termination of Executive's employment (whether or not during the Employment
Period).

     7.4 Intellectual Property. During the employment period, Executive shall
disclose immediately to the Company all ideas, inventions and business plans
that he makes, conceives, discovers or develops alone or with others during
the course of his employment with the Company, including any inventions,
modifications, discoveries, developments, improvements, computer programs,
processes, products or procedures (whether or not protectable upon application
by copyright, patent, trademark, trade secret or other proprietary rights)
("Work Product") that: (i) relate to the business of the Company or any customer
or supplier to the Company or any of the products or services being developed,
manufactured, sold or otherwise provided by the Company or that may be used in
relation therewith; or (ii) result from tasks assigned to Executive by the
Company; or (iii) result from the use of the premises or personal property
(whether tangible or intangible) owned, leased or contracted for by the Company.
Executive agrees that any Work Product shall be the property of the Company and,
if subject to copyright, shall be considered a "work made for hire" within the
meaning of the Copyright Act of 1976, as amended (the "Act). If and to the
extent that any such Work Product is found as a matter of law not to be a "work
made for hire" within the meaning of the Act, Executive expressly assigns to the
Company all right, title and interest in and to the Work Product, and all copies
thereof, and the copyright, patent, trademark, trade secret and all their
proprietary rights in the Work Product, without further consideration, free corn
any claim, lien for balance due or rights of retention thereto on the part of
Executive.

                                      -16-
<PAGE>   17

          (a) The Company hereby notifies Executive that the preceding paragraph
     does not apply to any inventions for which no equipment, supplies,
     facility, or trade secret information of the Company was used and which was
     developed entirely on the Executive's own time, unless: (i) the invention
     relates (a) to the Company's business, or (b) to the Company's actual or
     demonstrably anticipated research or development, or (ii) the invention
     results from any work performed by the Executive for the Company.

          (b) Executive agrees that upon disclosure of Work Product to the
     Company, Executive will, during his employment and at any time thereafter,
     at the request and cost of the Company, execute all such documents and
     perform all such acts as the Company or its duly authorized agents may
     reasonably require: (i) to apply for, obtain and vest in the name of the
     Company alone (unless the Company otherwise directs) letters patent,
     copyrights or other analogous protection in any country throughout the
     world, and when so obtained or vested to renew and restore the same; and
     (ii) to defend any opposition proceedings in respect of such applications
     and arty opposition proceedings or petitions or applications for revocation
     of such letters patent, copyright or other analogous protection.

          (c) In the event that the Company is unable, after reasonable effort,
     to secure Executive's signature on any letters patents, copyright or other
     analogous protection relating to Work Product, whether because of
     Executive's physical or mental incapacity or for any other reason
     whatsoever, Executive hereby irrevocably designates and appoints the
     Company and its duly authorized officers and agents as his agent and
     attorney-in-fact, to act for and on his behalf to execute and file any such
     application or applications and to do all other lawfully permitted acts to
     further the prosecution and issuance of letters patent, copyright and ether
     analogous protection with the same legal force and effect as if personally
     executed by Executive.

     7.5 Reasonableness of Restrictive Covenants.

          (a) Executive acknowledges that the covenants contained in Sections
     7.1, 7.2, 7.3 and 7.4 are reasonable in the scope of the activities
     restricted, the geographic area covered by the restrictions, and the
     duration of the restrictions, and that such covenants are reasonably
     necessary to protect the Companies' relationships with their employees,
     clients and suppliers. Executive further acknowledges such covenants are
     essential elements of this Agreement and that, but for such covenants, the
     Companies would not have entered into this Agreement.

          (b) The Companies and Executive have each consulted with their
     respective legal counsel and have been advised concerning the
     reasonableness and propriety of such covenants. Executive acknowledges that
     his observance of the covenants contained in Sections 7.1, 7.2, 7.3 and 7.4
     will not deprive him of the ability to earn a livelihood or to support his
     dependents.

          7.6 Right to Injunction; Survival of Undertakings.

          (a) In recognition of the necessity of the limited restrictions
     imposed by Sections 7.1, 7.2, 7.3 and 7.4, the parties agree that it would
     be impossible to measure

                                      -17-
<PAGE>   18

     solely in money the damages that any of the Companies would suffer if
     Executive were to breach any of his obligations under such Sections.
     Executive acknowledges that any breach of any provision of such Sections
     would irreparably injure the Companies. Accordingly, Executive agrees that
     any of the Companies shall be entitled, in addition to any other remedies
     to which such Company may be entitled under this Agreement or otherwise, to
     an injunction to be issued by a court of competent jurisdiction, to
     restrain any actual breach, or threatened breach, of such provisions, and
     Executive hereby waives any right to assert any defense that any of the
     Companies has to adequate remedy at law for any such breach.

          (b) If a court determines that any of the covenants included in this
     Article VII are unenforceable in whole or in part because of such
     covenant's duration or geographical or other scope, such court may modify
     the duration or scope of such provision, as the case may be, so as to cause
     such covenant as so modified to be enforceable.

          (c) All of the provisions of this Article VII shall survive any
     Termination of Employment without regard to (i) the reasons for such
     termination or (ii) the expiration of the Employment Period.

          (d) No Company shall have any further obligation to pay or provide
     severance or benefits under Section 6.3 if a court determines that the
     Executive has breached any covenant in this Article VII

                                  ARTICLE VIII.

                  CERTAIN ADDITIONAL PAYMENTS BY THE COMPANY

     8.1 Tax Gross-Up Payment. If at any time or from time to time it shall be
determined that any payment to Executive pursuant to this Agreement or any other
payment or benefit ("Potential Parachute Payment") hereunder or otherwise would
be subject to the excise tax imposed by Section 4999 of the Code or any similar
tax payable under any United States federal, state, local, foreign or other law
("Excise Tax"), then Executive shall receive and Mutual shall pay or cause to be
paid a Tax Gross-Up Payment with respect to all such excise taxes and other
Taxes; provided, however, that this Article VIII shall be subject in its
entirety to any Change of Control agreement with Executive entered after the
Agreement Date by the Company. The Tax Gross-up Payment is intended to
compensate Executive for all such excise taxes and any federal, state, local,
foreign or other income, employment, or excise taxes or other taxes payable by
Executive with respect to the Tax Gross-Up Payment.

     8.2 Limitations on Gross-Up Payments.

          (a) Notwithstanding any other provision of this Article VIII, if the
     aggregate After-Tax Amount (as defined below) of the Potential Parachute
     Payments and Tax Gross-Up Payment that, but for this Section 8.2, would be
     payable to Executive, does not exceed 120% of After-Tax Floor Amount (as
     defined below), then no Tax Gross-Up Payment shall be made to Executive and
     the aggregate amount of Potential Parachute Payments payable to Executive
     shall be reduced (but not below the Floor Amount) to the

                                      -18-
<PAGE>   19

     largest amount which would both (i) not cause any Excise Tax to be payable
     by Executive and (ii) not cause any Potential Parachute Payments to become
     nondeductible by the Company by reason of Section 280G of the Code (or any
     successor provision). For purposes of the preceding sentence, Executive
     shall be deemed to be subject to the highest effective after-tax marginal
     rate of Taxes.

          (b) For purposes of this Agreement:

               (i) "After-Tax Amount" means the portion of a specified amount
          that would remain after payment of all Taxes paid or payable by
          Executive in respect of such specified amount; and

               (ii) "Floor Amount" means the greatest pre-tax amount of
          Potential Parachute Payments that could be paid to Executive without
          causing Executive to (become liable for any Excise Taxes in connection
          therewith; and

               (iii) "After-Tax Floor Amount" means the After-Tax Amount of the
          Floor Amount.

                                   ARTICLE IX.

                                  MISCELLANEOUS

     9.1 Approvals. The Companies represent and warrant to Executive they have
taken all corporate action necessary to authorize this Agreement.

     9.2 No Mitigation. In no event shall Executive be obligated to seek other
employment or take any other action to mitigate the amounts payable to
Executive under any of the provisions of this Agreement, nor shall the amount of
any payment hereunder be reduced by any compensation earned as a result of
Executive's employment by another employer, except that any continued welfare
benefits provided for by Section 6.3(d) shall not duplicate any benefits that
are provided to Executive and his family by such other employer and shall be
secondary to any coverage provided by such other employer.

     The Companies' obligation to make the payments provided for in this
Agreement and otherwise perform the obligations hereunder shall not (unless
Executive is terminated for Cause) be affected by any circumstances, including
set-off, counterclaim, recoupment, defense or other claim, right or action which
the Companies may have against Executive.

     9.3 Enforcement.

          (a) The Company shall promptly reimburse Executive for all attorneys'
     fees, costs and expenses incurred by Executive in connection with the
     negotiation, execution and delivery of this agreement, up to a maximum of
     $18,000. If Executive incurs legal, accounting, expert witness or other
     fees, costs or expenses (including arbitration fees, costs or expenses) in
     an effort to secure, preserve, establish entitlement to, or obtain
     compensation or benefits under this Agreement, the Company shall promptly
     reimburse Executive for such fees, costs and expenses whether or not
     Executive is successful;

                                      -19-
<PAGE>   20

     provided, however, that no reimbursement shall be made of such expenses if
     Executive's assertion of rights was in bad faith and Executive does not
     prevail (after exhaustion of all available judicial remedies).

          (b) If the Companies fail to pay any amount provided under any
     provision of this Agreement when due, the Executive shall be entitled to
     interest, compounded monthly, on such amount at a rate equal to the lesser
     of (i) (A) the highest rate of interest charged by the relevant Company's
     principal lender on its revolving credit agreements, or (B) in the absence
     of such a lender, the prime commercial lending rate announced by The Wall
     Street Journal in effect from time to time during the period of such
     nonpayment, or (ii) the highest legally-permissible interest rate allowed
     to be charged under applicable law.

     9.4 Indemnification and Insurance. The Executive shall be indemnified and
held harmless by the Companies to the greatest extent permitted under applicable
Iowa law as the same now exists or may hereafter be amended (but, in the case of
any such amendment, only to the extent that such amendment permits a Company to
provide broader indemnification than was permitted prior to such amendment) and
the Companies' respective by-laws as such exist on the Agreement Date if the
Executive was, is, or is threatened to be, made a party to any pending,
completed or threatened action, suit, arbitration, alternate dispute resolution
mechanism, investigation, administrative hearing or any other proceeding whether
civil, criminal, administrative or investigative, and whether formal or
informal, by reason of the fact that the Executive is or was, or had agreed to
become, a director, officer, employee, agent, or fiduciary of a Company or any
other entity which the Executive is or was serving at the request of a Company
("Proceeding"), against all expenses (including all reasonable attorneys' fees)
and all claims, damages, liabilities and losses incurred or suffered by the
Executive or to which the Executive may become subject for any reason. A
Proceeding shall not include any proceeding to the extent it concerns or relates
to a matter described in Section 9.3(a). Upon receipt from Executive of (i) a
written request for an advancement of expenses, which Executive reasonably
believes will be subject to indemnification hereunder and (ii) a written
undertaking by Executive to repay any such amounts if it shall ultimately be
determined that Executive is not entitled to indemnification under this
Agreement or otherwise, the Companies shall advance such expenses to Executive
or pay such expenses for Executive, all in advance of the final disposition of
any such matter. During Executive's employment and thereafter, Companies shall
provide Executive with coverage under a director's and officer's liability
insurance policy in amounts no less than, and on terms no less favorable than,
those provided to senior executive officers and directors of the Companies on
the Agreement Date and in amounts no less than, and on terms no less favorable
than those, as provided to senior executive officers and directors of the
Companies from time to time.

     9.5 Cooperation With Regard to Litigation. The Executive agrees to
cooperate with the Companies during his employment with any of the Companies
(whether or not during the Employment Period) and thereafter (including
following Executive's termination of employment for any reason, whether or not
pursuant to this Agreement) by making himself reasonably available to testify on
behalf of the Companies or their Affiliates, in any action, suit or proceeding,
whether civil, criminal, administrative, or investigative and to assist each
Company or any of its Affiliates in any such action, suit, or proceeding by
providing information and

                                      -20-
<PAGE>   21
meeting and consulting with the Board of such Company or Affiliate or counsel
or representatives or counsel to the Company or its Affiliates, as reasonably
requested by the Board or such counsel. The Executive shall be entitled to
reimbursement for any expenses (including legal fees) reasonably incurred by the
Executive in connection with his compliance with the foregoing covenant;
provided, however, that during the Employment Period the Executive shall not be
reimbursed for his time spent in connection with his compliance with the
foregoing covenant. The Companies agree to pay Executive a per diem of $3,500
per day for each day of service (including travel days) performed by Executive
in accordance with this Section after Executive is no longer employed by the
Companies.

     9.6 Beneficiary. If Executive dies prior to receiving all of the amounts
payable to him in accordance with the terms and conditions of this Agreement,
such amounts shall be paid to the beneficiary ("Beneficiary") designated by
Executive in writing to the Company during his lifetime, or if no such
Beneficiary is designated, to Executive's estate. Such payments shall be made
in a lump sum to the extent so payable and, to the extent not payable in a lump
sum, in accordance with the terms of this Agreement. Such payments shall not be
less than the amount payable to Executive as if Executive had lived to the date
of payment and were the payee. Executive, without the consent of any prior
Beneficiary, may change his designation of Beneficiary or Beneficiaries at any
time or from time to time by submitting to the Company a new designation in
writing.

     9.7 Assignment; Successors. This Agreement is personal to Executive and he
may not assign his duties or obligations under it. No Company may assign its
respective rights and obligations under this Agreement without the prior written
consent of Executive, except to a successor to the Company's business which
expressly assumes the Company's obligations hereunder in writing. This Agreement
shall be binding upon and inure to the benefit of Executive, his estate and
Beneficiaries, the Companies and their successors and permitted assigns. Each
Company shall require any successor to all or substantially all of the business
and/or assets of such Company, whether direct or indirect, by purchase, merger,
consolidation, acquisition of stock, or otherwise, expressly to assume and agree
to perform this Agreement in the same manner and to the same extent as such
Company would be required to perform if no such succession had taken place.

     9.8 Non-alienation. Except as is otherwise expressly provided herein,
benefits payable under this Agreement shall not be subject in any manner to
anticipation, alienation, sale, transfer, assignment, pledge, encumbrance,
charge, garnishment, execution or levy of any kind, either voluntary or
involuntary, prior to actually being received by Executive, and any such attempt
to dispose of any right to benefits payable hereunder shall be void.

     9.9 Severability. If all or any part of this Agreement is declared to be
unlawful or invalid, such unlawfulness or invalidity shall not serve to
invalidate any portion of this Agreement not declared to be unlawful or invalid.
Any provision so declared to be unlawful or invalid shall, if possible, be
construed in a manner which will give effect to the terms of such provision to
the fullest extent possible while remaining lawful and valid.

     9.10 Amendment; Waiver. This Agreement shall not be amended or modified
except by written instrument executed by Mutual and Executive. A waiver of any
term, covenant or

                                      -21-
<PAGE>   22

condition contained in this Agreement shall not be deemed a waiver of any other
term, covenant or condition, and any waiver of any default in any such term,
covenant or condition shall not be deemed a waiver of any later default thereof
or of any other term, covenant or condition.

     9.11 Arbitration, Any dispute, controversy or claim arising out of or in
connection with or relating to this Agreement or any breach or alleged breach
thereof shall be submitted to and settled by binding arbitration in Des Moines,
Iowa, in accordance with the Commercial Arbitration Rules of the American
Arbitration Association (or at any other place or under any other form of
arbitration mutually acceptable to the parties so involved). Any dispute,
controversy or claim submitted for resolution shall be submitted to three (3)
arbitrators, each of whom is a nationally recognized executive compensation
specialist. The Company involved in the dispute, controversy or claim, or Mutual
if more than one Company is so involved, shall select one arbitrator, the
Executive shall select one arbitrator and the third arbitrator shall be selected
by the first two arbitrators. Any award rendered shall be final and conclusive
upon the parties and a judgment thereon may be entered in the highest court of a
forum, state or federal, having jurisdiction. The expenses of the arbitration
shall be borne according to Section 9.3, except that in the discretion of the
arbitrators any award may include the fees and costs of a party's attorneys if
the arbitrator expressly determines that the party against whom such award is
entered has caused the dispute, controversy or claim to be submitted to
arbitration in bad faith or as a dilatory tactic. No arbitration shall be
commenced after the date when institution of legal or equitable proceedings
based upon such subject matter would be barred by the applicable statute of
limitations. Notwithstanding anything to the contrary contained in this Section
9.11 or elsewhere in this Agreement, either party may bring an action in the
Iowa District Court for Polk County, or the United States District Court for the
Southern District of Iowa, if jurisdiction there lies, in order to maintain the
status quo ante of the parties. The "status quo ante" is defined as the last
peaceable, uncontested status between the parties. However, neither the party
bringing the action nor the party defending the action thereby waives its right
to arbitration of any dispute, controversy or claim arising out of or in
connection or relating to this Agreement. Notwithstanding anything to the
contrary contained in this Section 9.11 or elsewhere in this Agreement, either
party may seek relief in the form of specific performance, injunctive or other
equitable relief in order to enforce the decision of the arbitrator. The parties
agree that in any arbitration commenced pursuant to this Agreement, the parties
shall be entitled to such discovery (including depositions, requests for the
production of documents and interrogatories) as would be available in a federal
district court pursuant to Rules 26 through 37 of the Federal Rules of Civil
Procedure. In the event that either party fails to comply with its discovery
obligations hereunder, the arbitrator(s) shall have full power and authority to
compel disclosure or impose sanctions to the full extent of Rule 37, Fed. R.
Civ. P.

     9.12 Notices. All notices hereunder shall be in writing and delivered by
hand, by nationally-recognized delivery service that guarantees overnight
delivery, or by first-class, registered or certified mail, return receipt
requested, postage prepaid, addressed as follows:

     If to a Company, to:     Principal Mutual Holding Company
                              711 High Street
                              Des Moines, Iowa 50392
                              Attention: Karen Shaff
                              Facsimile No.:  (515) 235-9852

                                      -22-
<PAGE>   23

     With copy to:            Pamela Baker, Esq.
                              Sonnenschein Nath & Rosenthal
                              8000 Sears Tower
                              Chicago, Illinois 60606
                              Facsimile No.:  (312) 876-7934

     If to Executive, to:     (at his most recent home address or facsimile
                              number on file with the Company)

     With copy to:            Susan J. Daley
                              Altheimer & Gray
                              10 South Wacker Drive
                              Suite 4000
                              Chicago, Illinois 60606
                              Facsimile No.:  (312) 715-4800

Either party may from time to time designate a new address by notice given in
accordance with this Section. Notice shall be effective when actually received
by the addressee.

     9.13 Counterparts. This Agreement may be executed in multiple counterparts,
each of which shall be deemed to be an original, but all of which together will
constitute one and the same instrument.

     9.14 Captions. The captions of this Agreement are not a part of the
provisions hereof and shall have no force or effect.

     9.15 Entire Agreement. This Agreement forms the entire agreement between
the parties hereto with respect to the subject matter contained in the Agreement
and shall supersede all prior agreements, promises and representations regarding
employment, compensation, severance or other payments contingent upon
termination of employment, whether in writing or otherwise.

     9.16 Applicable Law, This Agreement shall be interpreted and construed in
accordance with the laws of the State of Iowa, without regard to its choice of
law principles.

     9.17 Survival of Executive's Rights. All of Executive's rights hereunder,
including his rights to compensation and benefits, and his obligations under
Article VIII hereof, shall survive the termination of Executive's employment or
the termination of this Agreement.

                                      -23-
<PAGE>   24

     9.18 Joint and Several Liability. The obligations of the Companies to
Executive under this Agreement shall be joint and several.

     IN WITNESS WHEREOF, the parties have executed this Agreement on the date
first above written.

                                        PRINCIPAL MUTUAL HOLDING COMPANY

                                        By: /s/ DAVID J. DRURY
                                           -----------------------------------
                                        Its: Chairman
                                           -----------------------------------

                                        PRINCIPAL LIFE INSURANCE COMPANY

                                        By: /s/ DAVID J. DRURY
                                           -----------------------------------
                                        Its: Chairman
                                           -----------------------------------

                                        PRINCIPAL FINANCIAL GROUP, INC.

                                        By: /s/ DAVID J. DRURY
                                           -----------------------------------
                                        Its: Chairman
                                           -----------------------------------

                                        PRINCIPAL FINANCIAL SERVICES, INC.

                                        By: /s/ DAVID J. DRURY
                                           -----------------------------------
                                        Its: Chairman
                                           -----------------------------------

                                        J. BARRY GRISWELL

                                        /s/ J. BARRY GRISWELL
                                        --------------------------------------

                                      -24-

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