This excerpt taken from the COBZ DEF 14A filed Apr 12, 2007.
Supplemental Executive Retirement Plan (SERP). In 2004, the Compensation Committee, with the assistance of the Companys independent compensation consultant, determined that SERP benefits are customary for the Named Executive Officer positions and are necessary to retain top talent to the Company. In addition to being market competitive, the objective of these benefits is to restore and supplement the level of retirement benefits provided in the Companys defined contribution 401(k) plan due to limitations in the Internal Revenue Code. The present value of accumulated benefits under the SERP for each of the Named Executive Officers is set forth in the section titled Pension Benefits.