EXHIBIT 22(d)(xiii)(b)

                                 AMENDMENT NO. 1
                                       TO
                             SUB-ADVISORY AGREEMENT
                                      AMONG
                             WT INVESTMENT TRUST I,
                      RODNEY SQUARE MANAGEMENT CORPORATION
                                       AND
                          EQUITY INVESTMENT CORPORATION

            This Amendment No. 1 to the sub-advisory agreement dated July 1,
2003 (the "Agreement") among WT Investment Trust I (the "Fund"), on behalf of
Mid Cap Multi-Manager Series (the "Series") a series of the Trust, Rodney Square
Management Corporation (the "Adviser") and Equity Investment Corporation (the
"Sub-Adviser) is made and entered into as of the 28th day of March 2005.

            WHEREAS, the Fund, the Adviser and the Sub-Adviser have entered into
the Agreement on behalf of the Series; and

            WHEREAS, the Fund, the Adviser and the Sub-Adviser desire to amend
the Agreement to avail themselves of a new exemptive rule promulgated by the
Securities and Exchange Commission under the Investment Company Act of 1940 (the
"1940 Act") and certain changes to other exemptive rules under the 1940 Act;

            NOW, THEREFORE, pursuant to Section 19 of the Agreement, and
intending to be legally bound hereby, the parties hereto hereby amend the
Agreement as follows:

            (1) The Agreement is hereby amended to add a new Section 7.d., to
read in its entirety as follows:

                  The Sub-Adviser acknowledges and agrees that in connection
                  with the exemptions provided under Rules 10f-3(b), 12d3-1, and
                  17a-10 under the 1940 Act, the Sub-Adviser (i) will not
                  consult with any other sub-adviser of the Series, which is
                  advising the Series, concerning the Sub-Adviser or its
                  affiliated persons' transactions with the Series in securities
                  or other assets of the Series, and (ii) consistent with the
                  other provisions hereof, the Sub-Adviser is limited to
                  providing investment advice with respect to the Series
                  Account; and

            (2) All other provisions of the Agreement not affected by this
Amendment remain in full force and effect.

            (3) To the extent that state law is not preempted by the provisions
of any law of the United States heretofore or hereafter enacted, as the same may
be amended from time to time, this Amendment shall be administered, construed
and enforced according to the laws of the State of Delaware.

            (4) This Amendment may be executed by facsimile and in more than one
counterpart, each one of which shall be deemed an original, and all of which
taken together shall constitute one and the same instrument.

            IN WITNESS WHEREOF, the undersigned parties have executed this
Amendment No. 1 to the Agreement as of the day and year first above written.



                              WT INVESTMENT TRUST I,
                              ON BEHALF OF THE MID CAP MULTI-MANAGER SERIES

                              By: /s/ John R. Giles
                                  ------------------------------------
                              Name: John R. Giles
                              Title: Vice President

                              RODNEY SQUARE MANAGEMENT CORPORATION

                              By: /s/ Robert J. Christian
                                  ------------------------------------
                              Name: Robert J. Christian
                              Title: President

                              EQUITY INVESTMENT CORPORATION

                              By: /s/ James F. Barksdale
                                  ------------------------------------
                              Name: James F. Barksdale
                              Title: President

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