It started with McDermott and his vision of what the offense should be not what it was with Dabol. I think Mcdermott wanted to slow it down and call plays like Mac Jones was the quarterback and not Josh Allen in his prime . And for whatever reason Diggs was not the same guy last year. Frustration from the playcalling and targets ? And Allen doesn't call the plays. They lost to KC by 3 last year and a missed field goal. Its not like they got blown out by KC. And the 13 second game that Allen had won until Mcdermott and / or Frazier blew it. And they came back from an impossible position to win their division . And the play calling during and at the end of the game was not great . They needed to put up more points not play not to lose . In any event more likely than not it will come down to the Bills and the Chiefs next year.they started throwing the ball to Shakir, and SD wasn't getting it. Then they went to the run, meaning SD wasn't getting the ball. Also the fact that Josh wasn't too good last year. Can't blame the highpaid QB for not getting into the SB when everybody else around him is getting released or traded.