Solid reply Lou, thank you.
I think what Breer was pointing out was that those elements (talent, coaching, and infrastructure) having been in place, allowed MJ to get closer to his ceiling. I think that is a fair take, would you agree? To use an example, and since it is one I am quite familiar with, think it applies perfectly here, we could refer to JA's experience in college. I think it was pretty much agreed upon that JA had a world of talent but he didn't have Alabama coaching, nor the talent or infrastructure around him to help him get anywhere near where his ceiling was thought to be. And because he hadn't that support, there were genuine questions as to whether or not he would ever realize that ceiling or anything close to it. It was only when he got to the NFL that those things began to materialize around him that facilitated his ascension. As a result, he is much closer to his ceiling today than when he was in college. Where that applies to MJ is, he is much closer to his ceiling because of the support he had in college. Thus, it is thought by some that because of his play, he doesn't have much more to go to hit his respective ceiling.
Make sense?
As for holding his own within the game plan, that may be. But going forward, that game plan is going to have to change, considerably, if you guys are going to compete with the new guard that has taken over the AFC. That being, KC, Cincinnati, and Buffalo. Possibly the Chargers as well, but they have a number of items to clean up before they can be considered part of the rivalry that is going to exist within the AFC for the next decade or so.
The grimacing is a red flag for me. Though no one likes taking a hit, I'm sure, you don't see other QB's reacting like that. It would be one thing if he did it because of a hit here and there, but it happens anytime someone gets close enough to breathe on him. I'm of the opinion that one well placed, or misplaced if you like, hit and he will be done.