'The reason for the flip-flop traces back to the new defensive scheme implemented by Sean McDermott that has fans hoping for an improvement on that side of the ball. The offense, meanwhile, looked abysmal in the preseason. Quarterback Tyrod Taylor is working with basically a brand new set of receivers. A word to the wise, though – don't overvalue preseason performances. That's not to suggest the Bills will be an offensive juggernaut, but rather to wait for a few real games before writing them off.'