Tim Tebow
The few remaining supporters of Tim Tebow will point to his success in 2011 as evidence that he could or should be playing in the NFL. Of course, most people will look back and remember that his Denver Broncos went on a run that helped them make the postseason thanks to their success running the ball and playing sound defense. However, nobody can dispute the fact that Tebow led the Broncos to a playoff win over the Pittsburgh Steelers, via an 80-yard touchdown pass in overtime to wide receiver Demaryius Thomas.
Ironically enough, he was traded away that ensuing offseason, when the Broncos acquired quarterback Peyton Manning in free agency. The Jets tried converting him into a fullback/tight end, but that experiment was cut short halfway through the season. Tebow made appearances in training camp for the Eagles and Patriots, but hasn’t been on an NFL roster since 2012. He is arguably one of the best players in college football history, but his NFL career lasted only 16 games.