That's basically a load of crap, I'm sorry. Fitz got no more out of this group than Tua did, he got his wins against the weakest opponents on our schedule, the two worst teams in the NFL plus an injury ravaged SF team. He got nothing out of them against NE, not enough against NE and SEA (where he literally threw them the game). Your only evidence is the LV win where he checked it down to Gaskin who broke for literally half the amount of total YAC we got in TD passes all season and he threw a blind pass to a receiver who's opponent fell over.
Fitz's game is all about throwing it up and letting the guys fight for it, sometimes that'll pay off but on average it's going to end up with just as many ints as TDs and a .500 record at best. Which is where he's been all his career. Fitz got no more from this group.