Natick (Mass.) Contributory Retirement System is searching for an investment consultant for the $58 million pension fund. RFPs can be obtained only through written requests mailed to Kathleen Bacon, director, Natick Board of Retirement, 13 E. Central St., Room 304, Natick, MA 01760. Requests also can be faxed to (508) 647-6443. Proposals must be received by 4 p.m. EST Aug. 28. Watson Wyatt was terminated in June because of changes in personnel at Watson Wyatt, Ms. Bacon said.