Vince Young
There was a time when people thought Young was going to be an NFL Hall of Famer. The Titans selected him after a storied college career with the Texas Longhorns. Things started well for the quarterback as he broke the rookie yards records. He also made the Pro Bowl but it all went downhill from there.

Injuries affected his influence in his sophomore year and his time as an NFL starter came to an end. Yes, his body let him down but his partying didn’t help. Young spent outrageous sums of money on strippers for his parties and didn’t take his recovery seriously. He’s one of the NFL’s biggest what-ifs because he had so much talent and potential (via Bleacher Report).