I watched just about every game Clausen started at ND. He has been groomed pretty well for the NFL by Weiss who like him or not has worked with some pretty good QB's. Clausen has some intangibles like sliding in the pocket to let a play develop not taking off running like JP Losman. Clausen always has his eyes downfield even in the face of a rush, he will wait til the last second and take a hit, he does not duck the rush and played scared like Trent Edwards. Clausen keeps plays alive and can be innovative shoveling a pass underhanded to his checkdown receiver if needed like Kelly used to do. Add to that his accuracy, he throws to the lead shoulder, allowing his receiver to run after the catch. Playing at ND gave him many chances to play from behind and he showed to be a battler converting many third and fourth down plays in the clutch. I think his production at ND was excellant considering the spotty blocking and Weis's offense that passed every play, opponents knew what was coming and he was still productive.
He is a competitor and plays cocky, a guy you like on your team and hate if he's the opponent. I assure you after he works out for scouts, he will be a top 5 pick.