SO change my opinion on Rex's coaching ability because why? You still haven't answered, beyond the fact that he's here next year. That's ridiculous.
Also on the "Oracle" comment, I made my prediction. I have no idea what will happen, only what I think will. No doubt many like yourself will be shocked, heartbroken, and write up tearful "I AM SO DONE WITH THIS TEAM" nonsense instead. That's fine too.
The majority of the defense will not be familiar with the scheme, IMO. We will be replacing half of them.
Roster movement of middling starters? No. Roster movement of cornerstones and stars? Yes, it can be just as detrimental.