I forgot to add:
For all the talk about just how bad the WRs were last year, and they were terrible, the sad truth is that this team's TEs were worse. And they were much worse.
Now, I don't know to a certainty that Brady could have done more with that dross than Newton was able to. I do know, though, that Brady's game has historically been all about throwing into the tightest of windows, in order to give his receivers a chance to catch the ball, while minimizing the potential for negative plays. Cam's game, on the other hand, has always been more about getting the ball somewhere near his target, some of the time.