Star is not a liability, but he is not an asset, either. He is overpaid to be a one dimensional DT, which is occupying space. Maybe that helps keep blockers off of the LB corps or allow other d-linemen to make plays...I dunno and would have to take the player's testimonials on that. i do know that Star does not blow up plays in the backfield nor does he get to the QB, and the Bills need this badly. Star is a Bill until 2022, for better or worse.