Mike Piazza remains one of the marquee free agents still on the market, and yesterday, according to baseball sources, his agents contacted the Yankees about moving across town as a designated hitter and backup catcher. The Yankees' response was that there was no room at the inn. According to sources, Piazza, who hit .251 with 19 homers and 62 RBI with the Mets last year, has minimal offers from the Padres, Phillies and Indians to play a reserve role, but none of them are anywhere near his believed asking price of $7 million-$8 million a year. It is the Yankees' feeling that Piazza could not offer as much in a DH capacity as what they expect to get out of Bernie Williams and they are satisfied with Kelly Stinnett as their backup catcher.