David Piper, Addicted to Quack -- ASU's Brandon Magee and Oregon's Michael Clay were both highly productive college linebackers who went undrafted because, at 5'11", they both lack prototypical size for the NFL. However, both a very fundamentally sound and simply make a ton of plays. I wouldn't be surprised if both didn't find a place in the league as special teamers.
Jack Follman, Pacific Takes: UCLA cornerback Aaron Hester. I was surprised he wasn't drafted because I heard a lot of people saying that they thought he might be a sleeper that could go as high as the fourth or fifth round. The NFL is moving towards bigger cornerbacks and at 6'1 207, Hester is huge and has the athleticism to boot.
Gekko Mojo, UW Dawg Pound: I like Jack's pick of Aaron Hester, but I think that the undrafted guy with the best potential to make an impact is a different Bruin: Joseph Fauria. He's got some physical skills that are unique, he's entering into a league that is beginning to value versatile, field stretching TE's, the Lions have a clear need AND he has an NFL lineage that should open some doors.