Year after year, an ocean of NFL-caliber prospects enter the combine and draft process with hopes of landing with a team.
Most show some sort of physical promise, but of course, a few bad eggs of the bunch come with the gamble of injury history, lack of focus or effort or character issues.
NFL general managers are pressed with the task of weighing the pros and cons, then deciding whether that prospect is worth taking that risk on.
This 2012 draft class has plenty of cases of that scenario. Here are five of the biggest headaches of this year's draft class.