The Chiefs won the Super Bowl because of their defense. Mahomes did not deserve that MVP. Do I have confidence that Beane and Mcdermott can duplicate that, no.
Would Diggs be gone if he was a not such a headache, that's the question. If no, then it's a bad deal. Whenever you have to unload a talented player because of his antics, you usually get fleeced.
The Bills offense will look different. Brady was already transitioning to more of a short passing game. We have two very good tight ends and a good pass catching running back. Wouldn't be surprised at all if the Bills go defense in this draft, trying to catch up with the Chiefs.