While I agree that we may have seen peak Josh Allen, I do think that that Josh Allen is still in there, but Brady doesn't run the offense to bring him out. Yes, the offense has objectively been effect under Brady, but it often (especially lately) feels like what you'd run with a journeyman clock manager under center. I was really hoping that Brady would get a head coaching job at the end of the season, but that seems unlikely now.
And, for a little chicken-or-the-egg discussion, Beane isn't doing anything to help them.