What is becoming clearer is that Frazier leave may have been more from frustration with McDermott’s leadership, which is coming under legitimate questions about his ability to lead the team as noted in this thread.
Do the Bills have a Sean McDermott Problem???
Maybe, just like Diggs, Frazier was frustrated with the obvious shortcomings of a head coach.
Combined with Frazier’s clear desire and frustration with getting a HC position this is much more likely than the “he was fired” meme that is coming from the same posters that have criticized Frazier (most time unjustified) for some time.