<PAGE>
                                                                    Exhibit 10.2


                                 March 14, 2002


Mr. Mark Perlberg
310 Green Park Court
Atlanta, GA 30327


Dear Mark:

     This letter confirms our agreement to amend, effective January 25, 2002,
your letter Employment Agreement dated January 7, 2000 (the "Agreement") in the
following respects.

1.   Paragraph 10(b) is hereby amended to provide a severance payment equal to
     24 months of your then current annual base salary, bonus at target level
     (regardless of whether such level is or has been achieved), and car
     allowance (rather than the 12 months stated therein), payable in 24 equal
     monthly installments commencing on the last day of the first month
     following termination. In all other respects, Paragraph 10(b) shall remain
     unchanged.

2.   Paragraph 9(d) is hereby amended to provide for a new sub-section (iv)
     adding an additional "Good Reason" to Paragraph 9(d), immediately before
     the last sentence in Paragraph 9(d) to read as follows:

     "(iv) your voluntary resignation within 180 days following a "Change of
     Control (as hereafter defined) or your voluntary resignation between 180
     days and 270 days following the appointment of a new CEO of the company
     (other than you) upon John Cook ceasing to be the CEO."

3.   A new paragraph 9(f) is hereby added to your Agreement as follows:

     "9(f). In the event of a "Change of Control" of PRG-Schultz International,
     Inc. ("PRGX"), as hereinafter defined, or you terminating your employment
     for Good Reason as provided in Paragraph 9(d), as amended, all of your
     stock options, restricted stock, and deferred compensation will immediately
     be fully vested.

4.   For purposes of this Agreement, a "Change of Control" shall have occurred
     if:

     (A) a majority of the directors of PRGX shall be persons other than
         persons:

         (xx) for whose election proxies shall have been solicited by the board;
              or

         (yy) who are then serving as directors appointed by the board to fill
              vacancies on the board caused by death or resignation, but not by
              removal, or to fill newly-created directorships; or

     (B) a majority of the outstanding voting power of PRGX shall have been
         acquired or beneficially owned by any person (other than PRGX or a
         subsidiary of PRGX) or any two or more persons acting as a partnership,
         limited partnership, syndicate or other group, entity or association
         acting in concert for the purpose of voting, acquiring, holding or
         disposing of voting stock of PRGX; or

     (C) there shall have occurred:

         (ww) a merger or consolidation of PRGS with or into another
              corporation, other than (1) a merger or consolidation with a
              subsidiary of PRGX or (2) a merger or consolidation in which the
              holders of voting stock of PRGX immediately prior to the merger as
              a class hold immediately after the merger at least a majority of
              all outstanding voting power of the surviving or resulting
              corporation or its parent; or

         (xx) a statutory exchange of shares of one or more classes or series of
              outstanding voting stock of PRGX for cash, securities or other
              property, other than an exchange in which the holders of voting
              stock of PRGX immediately prior to the exchange as a class hold
              immediately after the exchange at least a majority of all
              outstanding voting power of the entity with which the PRGX stock
              is being exchanged; or

         (yy) the sale or other disposition of all or substantially all of the
              assets of PRGX, in one transaction or a series of transactions,
              other than a sale or disposition in which the holders of voting
              stock of PRGX immediately prior to the sale or disposition as a
              class hold immediately after the exchange at least a majority of
              all outstanding voting power of the entity to which the assets of
              PRGX are being sold; or

         (zz) the liquidation or dissolution of PRGX.

5.   At the date of this agreement, your annual base salary is $400,000 and your
     target bonus percentage is 40%.

6.   Except as herein amended, all other terms of your Agreement shall remain
     unchanged. The provisions of the letter of July 24, 2001 from John Cook to
     you are hereby cancelled and superseded by this agreement.


                                                 Yours very truly,


                                                 /s/ John Cook
                                                 -------------------------
                                                 John Cook


Accepted and agreed to:


/s/ Mark Perlberg
-------------------------
Mark Perlberg