Sanibel (Fla.) General Employees' Retirement System is searching for an active domestic large-cap core equity manager to run $2.5 million, said Renee Lynch, city finance director. A time for final presentations has not yet been determined. Officials at the $7 million system plan to terminate the existing portfolio manager, State Street Global Advisors, for performance, according to Ms. Lynch. The plan's asset allocation is 47.5% domestic equity, 9.5% international equity, 41.4% fixed income and 1.6% cash. Arleen Roberts, SSgA spokeswoman, said the firm has no comment.