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                                                                   EXHIBIT 10.2

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                            OMNIBUS AMENDMENT NO. 1
                          DATED AS OF OCTOBER 7, 1999
                                  BY AND AMONG
                               OLSTEN CORPORATION
                                 AARONCO CORP.
                                   ADECCO SA,
                                      AND
                      OLSTEN HEALTH SERVICES HOLDING CORP.


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                               OMNIBUS AMENDMENT

    OMNIBUS AMENDMENT NO. 1 dated as of October 7, 1999 (the "Omnibus
Amendment") to each of the Separation Agreement dated as of August 17, 1999, by
and among Olsten Corporation, a Delaware corporation ("Olsten"), Aaronco Corp.,
a Delaware Corporation ("OHS") and Adecco SA, a societe anonyme organized under
the laws of Switzerland ("Adecco") (the "Separation Agreement"); the Employee
Benefits Allocation Agreement dated as of August 17, 1999, by and between Olsten
and OHS (the "Employee Benefits Allocation Agreement"); and the Tax Sharing
Agreement dated as of August 17, 1999, by and among, Olsten, OHS and Adecco (the
"Tax Sharing Agreement" and, collectively with the Separation Agreement and the
Employee Benefits Allocation Agreement, the "Agreements"). Capitalized terms not
otherwise defined in this Omnibus Amendment have the meanings specified in the
Separation Agreement.

                              W I T N E S S E T H:

    For good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, the parties hereto hereby agree as follows:

    1.  ASSIGNMENT TO OLSTEN HEALTH SERVICES.

    1.1  OHS hereby transfers, conveys, assigns and delivers to Olsten Health
Services Holding Corp. all of OHS's rights and interests in the Agreements.

    1.2  Olsten Health Services Holding Corp. hereby irrevocably and
unconditionally assumes, and undertakes to pay, honor, discharge and perform
when due or cause to be paid, honored, discharged or performed when due, all of
the debts, liabilities, obligations, commitments and responsibilities of any
nature of OHS pursuant to the Agreements.

    1.3  Any and all references to OHS in the Agreements shall, from and after
the date hereof, be deemed to be references to Olsten Health Services Holding
Corp. and, therefore, shall no longer be references to Aaronco Corp.

    2.  AMENDMENTS TO SEPARATION AGREEMENT.

    2.1  The definition of "Consulting Agreements" is deleted in its entirety
and replaced with the following:

    "Consulting Agreements" means the Amended and Restated Separation,
Consulting and Non-Competition Agreements dated as of October 7, 1999 by and
among Adecco, Olsten and each of Edward A. Blechschmidt and Stuart Olsten.

    3.  AMENDMENTS TO EMPLOYEE BENEFITS ALLOCATION AGREEMENT.

    3.1  The reference in Section 2(d) to "the Separation, Consulting and
Non-Competition Agreements between Albert, Olsten and the following individuals
dated August 17, 1999;" is hereby amended to refer to "the Amended and Restated
Separation, Consulting and Non-Competition Agreements between Adecco, Olsten and
the following individuals dated as of October 7, 1999".

    3.2  The reference in Section 2(d) to "the Separation, Consulting and
Non-Competition Agreement between Olsten and Maureen McGurl dated August 17,
1999" is hereby amended to refer to "the Amended and Restated Separation,
Consulting and Non-Competition Agreement between Olsten and Maureen McGurl dated
as of October 7, 1999".

    3.3  The reference in Section 6(a) to the "Olsten Supplemental Retirement
Plan" is deleted.

    3.4  New Section 6A is added to read as follows:

    6A.  Supplemental Executive Retirement Plan.

        (a) On or prior to the SERP Transfer Date (as defined below), Olsten
    shall amend the Olsten Supplemental Executive Retirement Plan (the "Olsten
    SERP") to provide (i) that all accrued benefits thereunder of actively
    employed OHS Employees shall be vested in full as of the SERP

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    Transfer Date (as defined below), (ii) that OHS Employees and their
    dependents and beneficiaries shall cease to participate in and accrue
    benefits thereunder as of the Olsten SERP transfer date established by
    Olsten, which shall be at least two business days prior to the date of the
    Effective Time (the "SERP Transfer Date"), and (iii) that no benefits shall
    thereafter be payable under the Olsten SERP to OHS Employees, Olsten
    Employees who (as of the date hereof) are former Olsten Employees or any of
    their dependents or beneficiaries (the "OHS SERP Participants").

        (b) As of the SERP Transfer Date, OHS shall establish a nonqualified
    supplemental executive retirement plan substantially similar to the Olsten
    SERP (the "OHS SERP"), and shall assume all liabilities and obligations with
    respect to the OHS SERP Participants under the Olsten SERP, whether arising
    prior to on or after the SERP Transfer Date (notwithstanding any subsequent
    termination of the Olsten SERP). All such liabilities and obligations shall
    cease to be liabilities or obligations of Olsten as of the SERP Transfer
    Date.

        (c) No termination of an Employee's employment shall be deemed to occur
    for purposes of the OHS SERP as a result of any actions taken pursuant to
    this Agreement or otherwise as a result of the consummation of the
    transactions contemplated by the Separation Agreement, provided that the
    Employee remains continuously employed by the OHS Group.

        (d) As soon as practicable following the SERP Transfer Date, OHS shall
    establish a trust to be used in connection with the OHS SERP (the "OHS SERP
    Trust") for the purpose of aiding in the provision of benefits under the OHS
    SERP. As of the SERP Transfer Date, Olsten shall cause the trustee of the
    trust under the Olsten SERP (the "Olsten SERP Trust") to transfer to the
    trustee of the OHS SERP Trust the amount held in the Olsten SERP Trust in
    excess of the amount necessary to fully satisfy all remaining benefits and
    obligations under the Olsten SERP upon its termination in accordance with
    Section 6A(e) and (f) below.

        (e) Immediately prior to the Effective Time and after the SERP Transfer
    Date, Olsten shall terminate the Olsten SERP, or cause it to be terminated,
    shall cause all accrued benefits thereunder of actively employed
    participants to be vested in full as of the date of termination of the
    Olsten SERP, and all accrued benefits under the Olsten SERP will be
    distributed by Olsten, or Olsten will cause such accrued benefits to be
    distributed, to each participant or beneficiary as soon as administratively
    practicable in the form of a lump sum payment. In the event the amount of
    assets in the Olsten SERP Trust (after taking into account the transfer of
    assets to the OHS SERP Trust under Section 6A(d) above) exceeds the amount
    necessary to pay all accrued benefits in full under the Olsten SERP, the
    Closing Intercompany Balance shall be reduced by the amount of such excess.
    In the event the amount of assets in the Olsten SERP Trust (after taking
    into account the transfer of assets to the OHS SERP Trust under
    Section 6A(d) above) is insufficient to pay all accrued benefits under the
    Olsten SERP in full, the Closing Intercompany Balance shall be increased by
    the amount of such shortfall.

        (f) Olsten shall take all actions necessary to effectuate the provisions
    of this Section 6A and to terminate the Olsten SERP immediately prior to the
    Effective Time and distribute all accrued benefits thereunder in the form of
    lump sum payments as soon as practicable thereafter, including, without
    limitation, amending the Olsten SERP to provide for (i) vesting of all
    accrued benefits of actively employed participants as of the time of
    termination of the Olsten SERP and (ii) distribution of all accrued benefits
    under the Olsten SERP in the form of a lump sum as soon as administratively
    practicable following termination of the Olsten SERP.

    4.  MISCELLANEOUS.

    4.1  Any and all references to Albert in the Agreements shall, from and
after the date hereof, be deemed to be references to Adecco and, therefore,
shall no longer be references to Albert.

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    4.2  Any and all references to the Agreements shall refer to the Agreements
as amended by this Omnibus Amendment.

    4.3  The execution, delivery and/or effectiveness of this Omnibus Amendment
shall not, except as expressly provided herein, amend, revise, add to or modify
any provision of the Agreements or operate as a waiver of any right, power or
remedy of any party under any of the Agreements, nor constitute a waiver of any
provision of any of the Agreements.

    4.4  This Omnibus Amendment shall be governed by, and construed in
accordance with, the laws of the State of Delaware without giving effect to any
provisions thereof relating to conflicts of law.

    4.5  This Omnibus Amendment may be executed in any number of counterparts
and by different parties hereto in separate counterparts, each of which when so
executed shall be deemed to be an original and all of which taken together shall
constitute one and the same agreement. Delivery of an executed counterpart of a
signature page to this Omnibus Amendment by telecopier shall be effective as
delivery of a manually executed counterpart of this Omnibus Amendment.

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    IN WITNESS WHEREOF, the parties hereto have caused this Omnibus Amendment to
be executed by their respective officers thereunto duly authorized, as of the
date first above written.


                                              OLSTEN CORPORATION
                                              /s/ EDWARD A. BLECHSCHMIDT
                                              ----------------------------------
                                              Name: Edward A. Blechschmidt
                                              Title: President and Chief
                                              Executive Officer


                                              AARONCO CORP.
                                              /s/ EDWARD A. BLECHSCHMIDT
                                              ----------------------------------
                                              Name: Edward A. Blechschmidt
                                              Title: President and Chief
                                              Executive Officer


                                              ADECCO SA
                                              /s/ JOHN P. BOWMER
                                              ----------------------------------
                                              Name: John P. Bowmer
                                              Title: Chief Executive Officer

                                              /s/ FELIX A. WEBER
                                              ----------------------------------
                                              Name: Felix A. Weber
                                              Title: Chief Financial Officer


                                              OLSTEN HEALTH SERVICES HOLDING
                                              CORP., a Delaware corporation
                                              /s/ EDWARD A. BLECHSCHMIDT
                                              ----------------------------------
                                              Name: Edward A. Blechschmidt
                                              Title: President and Chief
                                              Executive Officer


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