Plymouth (Mass.) Contributory Retirement System issued an RFP for a manager to run $3.8 million in active domestic small-cap core equities, replacing Loomis Sayles, said Kevin Leonard, the Segal Advisors consultant who is assisting the $77 million system. Loomis Sayles was terminated for performance, Mr. Leonard said. Christopher Lazzaro, vice president-public relations, said Loomis does not comment on client-related matters. RFPs may be requested by e-mail from [email protected]; proposals are due Aug 12, and a selection is expected in the fall.