By Dane Brugler at CBS SPorts
"TE Nick Kasa, Colorado (6-5, 260, 4.76) – A former defensive end, Kasa didn't make the move to offense until late last season, entering the 2012 campaign with just one career catch on his resume. Despite modest numbers as a senior this past season (25 catches, 391 yards, three touchdowns), he has impressed scouts with his natural athleticism and receiving skills. Kasa surprised even his own coaching staff with the way that he picked up the offense, flashing a physical mean streak as a run blocker and improving with more game action. He has had a tough time staying healthy, but his intriguing NFL upside is the reason that he appears No. 1 on this list."