Document:

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                                                                   Exhibit 10.17
                                                                   -------------

November 15, 1996

Mr. Raj Mitta                              REVISED
                                           -------
9B Marine View
Discovery Bay
Hong Kong

Dear Mr. Mitta:

     We are pleased to extend to you this offer of employment to join Arthur D.
Little Far East, Inc. as Managing Director Southeast Asia/Regional Practice
Leader Telecoms reporting to Mr. Michael J. McGaughey, Senior Vice President and
Directorate Managing Director of the Asia Pacific Management Consulting
Directorate.

     As mutually agreed upon, you will be based in Singapore.  During your
employment, Arthur D. Little may, with your concurrence, assign you to other
geographic locations as business might require. The company would provide
relocation assistance.

     Your remuneration package will be as follows:

     .    Base salary will be the equivalent of U.S. $300,000 per annum, paid
          monthly.

     .    Profit sharing will be the equivalent of U.S. $32,100 per annum (at
          company plan performance) paid quarterly, based on the actual company
          performance.

     .    Annual incentive compensation will be 60% of base pay (equivalent of
          U.S. $180,000) for achievement of target performance.

     .    In addition, the company will provide you U.S. $300,000 of Arthur D.
          Little stock to vest under the following schedule:
          .    $100,000 on January 1, 1997
          .    $100,000 on January 1, 1998
          .    $100,000 on January 1, 2000
               In addition, in the event that you are terminated or you
               voluntarily leave the firm, the January 1, 1997 vested portion of
               your ADL stock will be prorated in relationship to the months of
               service with the firm during the first two years of anticipated
               employment.

     .    The company will provide you:
          .    Medical/Dental health coverage
          .    Life-insurance
          .    Disability insurance
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          .    Deferred compensation package which will represent 17.2% of only
               your actual profit sharing and incentive compensation pay

     We have set forth the following elements which define your relocation
program and additional thoughts regarding current and potential future roles.

Housing Allowance

     The company expects the employee to secure a work location housing standard
similar to his original home location standard. Transfer location housing is not
intended to be an exact duplication of home location housing and must take into
consideration local standards. The company will seek and pay the housing
allowance in the most cost and tax effective manner in accordance with local law
and practice.

Relocation

     The company will provide reimbursement for the move of your household goods
and family to Singapore.

Educational Allowance

     The company will provide an allowance for each child's education in the
local country in order to provide home country equivalence relative to nature
and structure of education.

Home Visit

     The company will provide for one home visit per year for the employee and
his dependents. Air travel will be reimbursed at business class airfare rates.

Car Allowance

     The company will provide the employee a lease allowance for one automobile
equivalent to the status of his position in the work location. The company will
also pay the expenses of maintenance, insurance and registration for the
duration of the employee's assignment.

Club Membership

     The company will reimburse the employee for an appropriate club membership
in the new work location for the duration of your assignment.

Tax Planning

     The company will provide reimbursement for yearly tax planning associated
with your new work location for the duration of your assignment.
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Current/Future Roles

     As we have discussed, you would also become part of the Asia Pacific
Management Consulting Directorate (APMCD) Leadership Team and the senior APMCD
representative on the Global TIME Practice team. We will leave open the
flexibility in the future to move into different roles, as mutually agreed to by
you and the firm. For example, this might include a leadership role in the APMCD
Consumer Goods or Strategy practices, or in a geographic role such as Australia
or India.

     We look forward to your acceptance of our offer. To signify your
acceptance, please sign and return to me one copy of this letter. If you have
any questions, please feel free to contact me.

Sincerely,

/s/ Michael J. McGaughey
------------------------

Michael J. McGaughey
Senior Vice President and
     Managing Director Asia Pacific

                              ACCEPTANCE /s/ Raj Mitta
                                        -----------------------------------
                                              Raj Mitta
                                    DATE: 6/Nov/96
                                          ---------------------------------
                              START DATE: 1/Dec/96
                                          ---------------------------------<PAGE>

                                                                  EXHIBIT 10.18
                                                                  -------------

                    EMPLOYMENT CONTRACT FOR HIGH MANAGEMENT
                    ---------------------------------------

                       In Madrid, 1/st/ September, 2000

BETWEEN

"c-quential", (hereinafter referred to as "THE COMPANY"), with C.I.F. B 28801229
and principal place of business situated at Madrid and, in their name and
representation, acting as representative D. Ignacio Amezaga.

AND,

Mr. Eulogio NAZ (hereinafter referred to as ("THE GENERAL MANAGER"), with N.I.F.
28385161 - X, with address in Santa Brigida, 37 (Majadahonda), acting in his own
name and right,

It is agreed as follows:

That the conditions that will govern directly the contract are the following:

FIRST. - Duration -
         --------

The present contract is concluded for an unlimited time and it will come into
effect on 1/st/ September, 2000, date in which the GENERAL MANAGER will assume
his functions.

SECOND. - Work Location.
          -------------

The GENERAL MANAGER will render his services in Madrid, although THE COMPANY
reserves the right to transfer his work location within Spain if operational
reasons require it.

If THE GENERAL MANAGER is required to work elsewhere on a temporary basis then
THE COMPANY will reimburse his travel and accommodation expenses according to
its expenses policy.

THIRD. - Responsibilities of THE GENERAL MANAGER
         ---------------------------------------

A power of attorney will be given to THE GENERAL MANAGER, according to his
managerial function.

THE GENERAL MANAGER will have general responsibility for the Company in Spain
with the power of signature for all business matters.

THE GENERAL MANAGER will have, among others, the following responsibilities;

1.  He will be accountable to the Management Board of THE COMPANY and his direct
reporting relationship will be to.
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2.  He will lend his services with full autonomy and responsibility, with direct
dependence of the Management Board of THE COMPANY; he will accommodate his
performance to the Law to the Company Statutes to the norms and regulations that
govern the business management and also to the decisions of the shareholders.

3.  He will represent the Company in all the performances in conformity with the
powers that will be conferred to him.  He is committed to carry out his work
with the proper diligence using all his knowledge and professional experience.

FOURTH - Confidentiality.
         ---------------

During this contract as well as once extinguished the labour relationship, the
General Manager is committed to the strictest duty of confidentiality and secret
with regards to all the information that he receives as consequence of his
lending of services for the Company.

In the regular development of his position as well as outside of the same one
THE GENERAL MANAGER he will have to act with the proper caution and loyalty in
order not to damage the interests of the COMPANY.

It will be considered disloyal behavior not only the disclosure (spreading) of
the information that the GENERAL MANAGER had acquired as consequence of this
contract and the usage of the same one in own benefit or of third parties, but
also all negotiation with the purpose of a disclosure of the mentioned
information.

The General Manager will not be able to dispose, with another object that is not
the lending of his services, of the documents, goods or material from the
Company to those that he has access for the lending of his services.  Likewise,
he declares his intention of following the instructions that in the future the
Company could dictate in relation with the treatment of the privileged
information of which he could dispose.

After the termination of this contract the General Manager is committed to hand
over to the Company all property belonging to it, in particular any written
documents, diagrams, drawings, samples and business papers of any kind that he
has access for the lending of his services and that are related to his activity.
It is an open list, that is to say, the documents enunciated are expose to serve
only as an example.

FIFTH - Exclusivity pact
        ----------------

In accordance with the article 8 of the Decree 1382/1985, of August 1st, that
regulates the special relationship of high management; the General Manager will
have exclusive dedication for the contracting company and, in consequence, he
will not be able to sign other work contracts with other Companies.  The
quantity of the conventional includes this exclusive dedication.

The General Manager is committed during the validity of this contract not to
participating actively in another company, not to be a shareholder of any other
one that competes with the Company or that maintains substantial business
relationships with this, unless there is a previous

                                       2
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and expressed approval by the Governing Board of the Company. In this respect,
it will not be considered as participation the acquisition of shares of a
company that, for their volume, do not enable any control or influence to
exerted on the Administration organs of the same one.

SIXTH - Renumeration
        ------------

1.  THE GENERAL MANAGER will be paid on an annual basis of 14 monthly payments
of, gross (357.142 Ptas). This includes basic salary plus any seniority payment
or other allowances.

2.  His remuneration will be reviewed after six months in light of his
performance after which time, he will be set targets of performance, which will
be the basis of any further increases.

3.  At the end of each month, the GENERAL MANAGER'S net wage shall be
transferred to the bank account designated by him.

4.  THE GENERAL MANAGER is entitled to the following perks:
     .    Medical Insurance (up to 100,000 Ptas per year)
     .    Life Insurance (244.000.000 Ptas in me of death or disability)
     .    Car Allowances (up to 2.400.000 Ptas per year)
     .    Pension Scheme (Premium of 7.200.000 Ptas per year)

SEVENTH. - Working hours and vacations.
           ---------------------------

1.  The GENERAL MANAGER Will be dedicated 8 hours per week to THE COMPANY

2.  The GENERAL MANAGER will enjoy the official feast days of the labour
calendar. Nevertheless, for exceptional circumstances, those official feast days
can be subjected to travelling, displacements or meetings.

3.  The GENERAL MANAGER is entitled to 30 natural days of vacation per each
calendar year,

4.  The vacation period shall be jointly by virtue of agreement with THE
COMPANY, taking into account the interests of the same one, the management of
THE COMPANY as well as of the shareholders.  Likewise, the period of vacation
will be able to be interrupted in any moment by extraordinary causes or by
urgency of the interest of the Company.

EIGHTH.  Travel expenses.
         ---------------

For travelling made on behalf of the Company, the GENERAL MANAGER'S expenses
shall be reimbursed in accordance with the current Company guidelines for
business trips,

NINENTH - Involuntary termination.
          -----------------------

                                       3
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In the event of involuntary termination of employment, except for dismissal
based on a justified cause, THE GENERAL MANAGER will be entitled to a payment
based on 20 days net salary per worked year up to a maximum figure of 12 months
salary.

The above mentioned compensation shall be paid to the GENERAL MANAGER whether
the contract is defined by the Court as a common employment contract or as an
employment contract of special labour relationship of high management.

TENTH.  Final clauses.
        -------------

1.  Whatever is not regulated in this contract, the Decree 1332/1985, dated on
August 1/st/ that regulates the labour relationship of High Management, will be
applied.

2.  The amendments, and modifications of this contract will only be valid if
they are carried out in a written way and they are accepted by THE COMPANY.

3.  The fact, that a part of this Agreement is invalid for any reason, shall not
affect the general validity hereof.

As proof of conformity, both parts sign free and consciously the present
document in the city and date indicated in the heading.

     By:  THE COMPANY                    By: THE GENERAL MANAGER

     /s/ Ignacio Amezaga                 /s/ Eulogio Naz
     ---------------------               ----------------------
     Fdo: Ignacio Amezaga                Fdo: Eulogio Naz

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