Many of the projected top-15 picks in the 2013 NFL Draft are flawed players, which has led to a wide variety of evaluations on some of the top prospects.
Former NFL general manager and current NFL Network analyst Charley Casserly joined "NFL AM" on Thursday to break down the most difficult players to evaluate in the 2013 draft:
Casserly pointed out that while the West Virginia quarterback has an NFL arm, can make all the throws and has elite athleticism, the difficulty comes with reading coverages.
"The challenge is when you watch him in the pocket is his pocket presence," Casserly said. "He tends to hold the ball and not be aware of things around him, doesn't always make the right read on the defense as far as throwing to the right guy into certain coverages."
Patterson's single season at Tennessee is cause for concern, Casserly said, as it makes judging his abilities against top talent difficult.
"The best thing he does is run after the catch, but when you watch him catch the ball, is he is not necessarily a natural hands-catcher," Casserly said.
"When I watch him play, he's what I call a 'roped player'," Casserly said. "He does everything he's taught to do. He doesn't do a lot of things natural; you don't see counter moves in the pass rush -- yes, you see a spin, but that's really not a counter move, to me."
Casserly pointed out that Jones was a productive player at Georgia, but that production might have been a mirage.
"He may have fooled us in that I've never seen a pass rusher in the NFL be successful at 245 pounds who runs 4.9 (40 yard dash). So is that 4.9 a true 4.9, or does he actually play quicker and faster than that?" Casserly said.