Not so easy in the NFL when even the D-linemen are insanely fast and everyone on defense is playing disciplined football, staying in their lanes, etc.

Williams ends up turning a lot of throw-away situations into sacks and a lot of short sacks into deep sacks because he wants to extend the play with his legs (and could get away with it in college). I've been seeing the same thing from Sanders, and it's not a recipe for success. There are very few times that turning your back to the defense, running 10 yards directly away from the line of scrimmage, and then trying to turn, plant, and throw will work against an NFL D.