Football might be the ultimate team sport, but the NFL is dominated by larger-than-life talents -- those players who, through sheer force of skill and personality, seem able to single-handedly drive their squads. A player like that can become everything to his organization, defining its identity and dictating its fortunes. In other words, he becomes the face of the franchise. Of course, though, one man can carry the franchise torch for only so long, as time is a cruel thief. Eventually, the onus falls on someone else.