Johnny Manziel isn't viewed as a conventional NFL prospect at quarterback historically, but he may be aligned with where the position is moving.

"Nowadays, you have to be special as a pocket passer to get away with being just that," said one area scout. "It's essential to have mobility to make it. I know he's 5-foot-11, 6-foot, but I believe, with the way the league is going, with the success of the mobile quarterback, if he can grow up and study and work, he can be successful."

Manziel has average arm strength, but above average accuracy and excellent athleticism. His biggest issue is his size.