2. Ryan Leaf

Years: 1998-2002
Teams: San Diego Chargers, Tampa Bay Buccaneers, Dallas Cowboys, Seattle Seahawks
Drafted: 1st round, 2nd overall (1998)
Career Games Started: 21

Everybody knows the story of Ryan Leaf blowing up on reporters, most notably in the locker room when he told a reporter to “Knock it off” among other choice words. Leaf was a lock to become an NFL star according to draft analysts and the separation between him and Peyton Manning was thought to be small, so choosing a quarterback in the '98 draft was simple: If a team didn't take Manning they would take Leaf and vice versa.

Well the Chargers chose Leaf with their pick and the rest is history. In the third game of the season against the Chiefs, Leaf completed just one pass for four yards with a completion percentage of 6.7%, he also threw two picks and fumbled three times. Ryan Leaf off the field wasn't much better, most recently getting into trouble asking players that he was coaching at West Texas A&M for painkillers.