The Mets forfeited millions in playoff revenue along with the National League East title by stumbling down the stretch during a pitiful September. The historic collapse, however, will not cost Willie Randolph his job. General manager Omar Minaya was reluctant to give Randolph an airtight vote of confidence in the wake of Sunday's loss to the Marlins and stopped just short again Monday during a 38-minute interview with reporters at Shea Stadium. "I think looking at what he has done here in the past three years speaks for itself," Minaya said yesterday at Shea. "I think Willie works hard and my relationship with Willie is very good. But because of the way we lost, I think it's fair to at least sit down with ownership."