First online scouting report that came up on Google on Rodgers:
"If you wanted to make a video on how to be a textbook quarterback, Rodgers would be the model for it. It's almost strange to watch someone who has such pinpoint footwork and mechanics, because you expect quarterbacks to develop their own personal style to their throwing, but with Rodgers, everything is by the book. He has very good accuracy on his throws, and has confidence in his arm on both the short routes, as well as the deep ones. Rodgers has developed very quickly into a great leader on the field, evidenced by the confidence his teammates have in him. He handles pressure very well, and although he's not the most mobile guy, he is very good at feeling or anticipating pressure and escaping. This is a great asset to have, especially when you pair it with a strong ability to throw while on the run."
In fact the point that I have heard scouts are concerned with on Rodgers is his mechanics and motion are so "perfect" they're concerned what happens in an NFL game with huge fast guys all around him if protection breaks down? We know in the pocket he can set himself and throw a perfect ball, but can he improvise?
Sorry but saying the guys throwing motion is long is like saying Carl Lewis would have been faster if he had better running mechanics.
The key on Rodgers is going to be when he gets measured, how tall is he really, that's the key question.