He's proven otherwise.
8 TDs, 4 INTs, a QB rating in the mid 80's, good mobility and nice teardrop deep throws. He's posted QB ratings higher than 90 against both the Rams and the Chargers. And the guy is 22 years old. That's 4 years younger than Grossman, 3 years younger than Eli , 2 years younger than Big Ben and 1 year younger than Leinart.
Did anyone see this one coming?