Retirement Board of Allegheny County, Pittsburgh, will interview five consultant finalists at its May 14 board meeting, said Cheryl Bateman, executive director for the $690 million fund. Finalists to be interviewed are incumbent Kalson & Associates, Advest, Greycourt, Spagnola-Cosack and Yanni-Bilkey. Last month the board interviewed Buck Consulting, Merrill Lynch, Prudential Securities and Salomon Smith Barney. The search was prompted by the boards decision to "see what else was out there, Ms. Batemen said. Performance is not an issue, she added. A decision is expected by June.