Trump will need to appoint a rock-solid AG who will then appoint rock-solid reviewers of the USAttys to be retained and new USAttys to be appointed.
I agree that all USAttys should resign at the time of POTUS exchange. I hope he has a plan already in place.
I would recommend Ken Starr or Robert Bork for AG.
Robert Bork, sad to say, died in 2012.
But even in his current condition, he would be a far better AG than any of Obama’s abysmal appointees.