LeBron James(notes) isn't the only NBA player who muses about playing pro football. In an interview with ESPN the Magazine, Celtics forward Glen "Big Baby" Davis said he wants to play in the NFL — but not before he becomes an elite NBA player.Elite, eh? That may take a little while."I will try it," said Davis, who's on the injured list for six weeks with a broken right thumb sustained in a good ol' fashioned car fight. "When I become an All-Star in t...