If he's smart he's net working with NFL guys getting to know who the next young up and coming defensive and offensive minds are. Go young comes you'll have your potential replacement of the staff already.
You pointed they got fired... like you were trying to minimize the greatness of that staff. Who cares if they got fired? Its meaningless to the point being made. You'd be hard pressed to find staffs like that with a staff with those accomplishments. Off the top off my head USc mid 2000's...
Who givers a ***? They were still good enough to get an NFL HC job. That's the top of your craft. That a top notch college staff buddy you can try to take away from all you want.
Been saying this for a grip..,. go back and look at Erickson staff.... same with JJ. Real head coaches bring in real assistants and real players. You see the same thing with urban Meyer, the dude at Oklahoma etc. etc. This is what Diaz has to do.