I agree with 100% what you just said. But I will also add that Brewster should be given a full five years to show what he can do. He is only two games into his fourth year. Count me among those who think that next year the team will start to show real progress. I hope that Brewster will be given the opportunity to coach his guys. I think he has earned it.
I'll respectfully disagree on the point about Brewster. He is using *his guys* now and has been for the last season or so...he recruited JUCO to improve the D in '08 and '09 and the defense now is entirely his, as is most of the skill positions except for Weber.
Brewster's main faults are a lack of consistency in philosophy on offense combined with horrible game management. Essentially, he's a good recruiter but a coach who makes bad decisions and hasn't improved in that regard. It doesn't help that year to year the philosophy of the team changes...football requires some consistency in that regard...going from spread to west coast to balanced offense over three years isn't good.
Would Weber be a better QB if he were still under Dunbar's coaching? Probably so...Weber regressed markedly under Fisch and the jury is out under Horton although Weber looks better passing the rock so far.
All told, there isn't any indication the program is improving under Brew. He's spinning his wheels, occasionally kicking some mud up, all the while stuck in neutral or in the mud of mediocrity. If Brew the coach were improving and there were some consistency in philosophy I can buy an argument where keeping him around is worth it. I haven't seen it...and in fact the same coaching mistakes we saw year 1 are popping up in year 4.
He's better suited to be a recruiter somewhere and not a head coach.