The only real critism that he is (rightly) guilty of is that their style of play is very (VERY) predictable. He needs to really give some different looks on defense.
I am not sure if his removal from personnel decisions is a good thing or it can be improved?
If you think about it, the Dolphins seem to have the personnel. On defense, Thomas, Seau, Taylor, Ougienlye, Madison, Surtain, Knight, etc.; and on offense, Williams, Chambers, McMichael, etc. The offensive line needs some help and, invariably, people don't seem to like Jay Fiedler as QB, but somehow the guy finds a way to win.
You throw the loss to Houston out (which the ENTIRE team didn't show up for), and Fiedler lost to the Pats 2xs and the Eagles, both teams that are headed into the playoffs, with the Pats being the best team in football right now.
So, personnel-wise, what do the Dolphins do? Beef up the line? Ok. Retain the stars and deal with the salary cap? Ok. Get a great QB to replace an average one? Where?
I mean, there doesn't seem to be a whole lot to be done on the personnel front. Perhaps that he doesn't have the personnel headache, he can focus on getting the guys up and/or designing new schemes. I hope that is the case. If, in the next season, they don't show out and make the playoffs, I think there will be some legit criticism of Wannestedt.