He put up a 121 ANY/A+/17 AV season in 2005 as a 25-year old with the pedigree of being the #1 overall pick. You'll have a hard time convincing me he wasn't going to be a superstar if not for what happened.I always thought he had everything lined up to be a HOF-caliber quarterback, but he was never able to reach the level of dominance I thought he was capable of.
His 137 career AV puts him on a tier with Donovan McNabb, Drew Bledsoe, and Boomer Esiason, which feels about right.