He may have been by some, but there were some that didn't it seemed. I just recall seeing something along the lines of he had trouble learning the offense or was slow learning it, something like that. Think I remember something about he and Brady were not on the same page many times too.
And was other stuff like he would never be like he was with Bengals because he struggled to learn new systems...something along those lines. Anyways, obviously I don't know for sure, just a little something I remember