Howard Smith-USA TODAY Sports
Matt Barkley, QB, Philadelphia Eagles (98th overall)
Had Barkley left school a year earlier, he likely would have been the third quarterback drafted after Andrew Luck and Robert Griffin III in the 2012 NFL draft.
Instead, Barkley went back to USC to win a national championship. Unfortunately, he failed miserably at that, struggled during the season to impress NFL teams and wasn't drafted until the first pick of the fourth round.
That's a lot to comprehend, but what it all boils down to is the fact that Barkley likely has a massive chip on his shoulder. He probably wants nothing more than to prove to teams that they were all wrong about the type of player he can be in the league.
Sean Porter, OLB, Cincinnati Bengals (118th overall)
At Texas A&M, Porter played alongside Von Miller. After Miller left the team and got drafted with the second overall pick of the 2011 NFL draft, many expected Porter to become the next high draft pick from A&M.
However, a switch from a 3-4 defense (which Porter excelled in) to a 4-3 defense (which Porter sometimes struggled in) in his senior year caused some concerns about his overall abilities. Those concerns dropped Porter all the way into the middle of the fourth round.
What Porter needs to prove is that his knowledge of both 4-3 and 3-4 defenses makes him a more versatile and well-rounded player.
Just Missed: Tyler Wilson, QB, Oakland Raiders (112th overall)
Wilson was another highly-regarded prospect before the 2012 college season started. However, he too struggled throughout the college season and saw his draft stock drop dramatically.
As one of the more gifted quarterback prospects in this year's draft, Wilson has to prove that his struggles on the field revolved around the sudden departure of his coach Bobby Petrino and not his overall talents.