EXHIBIT 10.4 DIRECTOR RESIGNATION AGREEMENT

<PAGE>

                                                                    EXHIBIT 10.4

                         DIRECTOR RESIGNATION AGREEMENT

         This Director Resignation Agreement ("RESIGNATION AGREEMENT"), dated as

of August 17, 2005, is among Pacific Continental Corporation, an Oregon

corporation ("PCBK"), NWB Financial Corporation a Washington corporation

("NWB"), NWB's subsidiary, Northwest Business Bank, a Washington corporation

(the "Bank") and the undersigned, each of whom is a director ("DIRECTOR") of NWB

and/or the Bank.

                                     RECITAL

         In connection with the Plan and Agreement of Merger (the "MERGER

AGREEMENT") dated as of the date hereof, whereby, among other things, NWB will

merge with and into PCBK and the Bank will merge with and into PCBK's

subsidiary, Pacific Continental Bank (the "TRANSACTION"), each Director hereby

agrees as follows:

                                    AGREEMENT

1. RESIGNATION. Each Director hereby tenders his or her resignation from the

   Boards of Directors of NWB and/or the Bank, as the case may be, effective

   only upon the closing of the Transaction.

2. MISCELLANEOUS.

   a. Counterparts. This Resignation Agreement may be