Bob McGinn's Scouts on Aaron Rodgers: http://www.jsonline.com/sports/packers/203116571.html

NFC scout: "I think he has a good chance of being a bust. Just like every other Tedford-coached quarterback. Thing I struggle with him is he gets sacked a lot. He doesn't have great ability to change the release of the football. He's mechanically very rigid. Brett Favre can change his release point and find different windows. There will be more growing pains with Alex Smith but in the end he has a much better chance to be much better."
Much more at the link. But the takeaway is that scouts, speaking publicly, are much more certain about physical attributes and have NO idea whether someone will be successful translating their game to the pros.