There's a running joke that Jon Gruden never feels like he has enough quarterbacks on his roster. The Tampa Bay coach took four to training camp five weeks ago and emerged Saturday with the same quartet after deciding to keep Chris Simms, who has struggled to regain his throwing form after missing most of last season with a spleen injury. How long the Buccaneers, who are hoping to rebound from a 4-12 finish, reasonably can expect to go with four quarterbacks is a question Gruden was not available to answer after the squad was trimmed to the season-opening limit of 53 players.