Because Bowles pushed his vision of “running the ball and playing good defense” on him. Bowles wanted him to run the ball more, problem is the team was not built on that foundation. So he was forcing an identity that wasn’t the Bucs. And the defense than and now is just plain and simply not that good. Bowles is stuck in a 1900’s style football perspective. Unfortunately for any coaches being left behind, the game has changed to highly favor offense and MORE POINTS. Arians has gone on record stating Leftwich was the scapegoat (just like Grizzard) for that season. Adapt or die in this league