I've given my reasons somewhat in detaill elsewhere, so I won't repeat all that here. The bottom line:
1) The Krafts ran an unprofessional, half-assed "hiring process." They crippled themselves going in by foolishly giving the HC job in advance to an utterly inexperienced candidate based on no responsible basis whatever: that Mayo is a "nice guy" whom the owner found to be a charming travel companion. All of this is irresponsible, and the results from GM to HC and all the way down the organizational chart have proven to be predictably inferior.
2) The argument that firing people. - HC, GM, whatever - after one year is necessarily disastrous, that doing so makes you "one of those teams," is counter to the facts. It is silly, childish magical thinking. If you hired the wrong guy, you fire him. Weak-willed failure to act on a problem is what can make you "one of those teams."
3) I see no evidence - none - that Mayo is likely ever to become a first-rate HC. If you feel you have such evidence, let's hear it. I am not interested in excuses: I am interested in factual, empirical evidence.
4) Wolfe has demonstrated his incompetence not only in the Mayo era but even before in the Belichick era. Unfortunately Robert Kraft bought Wolf's whiny complaint that "Bill never let us do what we wanted. " Ridiculous. Soft as a grape. Now Wolfe has inarguably been able to do what he has wanted, and the results, aside from drafting Maye, for which I give him little credit since it was the obvious move, have been pathetic. I am frankly baffled that he has not been fired already.
5) There are obvious deficiencies all down the line in the various coaching positions. The idea that an inexperieced, failing HC - Mayo - has the soundness of judgment to make decisions as to who may stay, who must go, and with whom to replace those fired is patently ridiculous. It goes without saying, based on the lousy job he did in putting together the present coaching staff, that Wolf is no better equipped to make those decisions.
6) The Krafts need to secure the counsel of experienced NFL people to rebuild the front office, the coaching staff, and the roster. That we are yet again "in the first year of a rebuild" is testomny to the Krafts' inability to make the professionnal decisions needed to begin (again!) to rebuild the team.