7. Jim McMahon (overrated)
McMahon had a lot of flair and bravado, but he wasn’t really a standout quarterback despite being the fifth overall pick in the draft in 1982. He helped the Bears win Super Bowl XX after a 15-1 season, but that team was so loaded with guys like Walter Payton and Mike Singletary that they could have one with just about anyone at quarterback.
Injuries are partly to blame for his career heading south, but for a guy who went to one Pro Bowl, he gets way too much credit for being a great player.