He's a good QB, that's got one insurmountable failing, in that he bottles it under pressure. Those 12-5 years were built around beating up poor teams ....and then failing in the dying minutes v SF (x2) and GB.
He's a good QB, who has been supported in the last 3 years, because the FO kicked the CAP can, to provide him with the necessary talent to succeed...but he failed.
Now if he went back to his Rookie deal, with the All-Pro O-Line and rushing champ at RB, great, but he's getting paid big money.....for that he should take the relevant responsibility, rather than absolve it to those on the roster that are being paid a fraction of what he gets.