Sorry to go back to an earlier post, but I think this is the essence of almost every lamentation I've heard here about Brewster's coaching, and I think it's an important point.
During the Mason years, we had a team that was, on paper, outclassed by most of the Big Ten. However, due to a well-schemed offense, and talent concentrated in the right places, we were able to make up some of the difference and compete with deeper and more talented teams like Wisky, Iowa, etc. We have, in some ways rightly, come to expect our team to sometimes over-achieve, catch a better team napping on us, etc.
The move from Mason to Brewster brought a massive change in philosophy for this team. Mase had a solid staff with a good scheme on offense and got his teams to play above their heads. Brewster, on the other hand, is completely untested as a field general/game planner. He was brought in specifically to improve the talent on this team, in the hopes that he learned to coach while building up the talent to compete with our rivals on equal or better-than-equal footing. The belief being (and I for one am in full agreement) that we are better served in building a strong foundation of talent than in continuing to scrape by through pouring all the talent into the run game and hoping that can carry us to one or two 'magical' years. Unfortunately, since our chances of getting Nick Saban to Minnesota didn't look good, the AD decided we had to sacrifice some coaching to get the recruiting...that's the way it goes sometimes.
The upshot of all this is that, since we don't have the talent yet, and Brewster doesn't have the knowledge or the scheme that Mason did, we are no longer able to beat more talented teams. For a fan base that's used to doing just that on a fairly regular basis, it can be tough to swallow. However, if Brewster continues to bring in the level of player he has been getting, and can learn a thing or two and get his coordinators in sync with the team, the time will come when we no longer need to overachieve to beat our conference rivals. When that day comes, if the coaching staff can get their heads on straight and get their own good schemes/styles, the seasons we overachieve will be Rose Bowl years instead of 10-3 with a mid-tier bowl win. In my opinion, a shot at that is worth it. If Brewster and his staff can't figure out how to coach this talent to wins when the team is finally filled with his recruits, then I'm all for looking at replacements. Until then, things are going according to plan.