O-linemen often come to NFL pretty raw

College football's spread offenses are producing wide receivers and quarterbacks ready to play as NFL rookies — and lots of linemen who need more prep for prime time.

ESPN analyst Jon Gruden recently bemoaned how quarterbacks have been under siege. He said the passers are to blame for not directing protections properly or getting rid of the ball fast enough but that the baby-faced behemoths aren't keeping pass-rushers at bay, either.

"You're getting a lot young offensive linemen out of college these days that have never been in a three-point stance, have never been in a huddle. They don't have a real good background in how to get (in) the stance and get out of a stance and pass protect let…