Sessions should replace Rosenstains #2 and #3 with affirmative action picks
Then Trump should promote Rosenstain out of his present job
Note to future presidents: Get every Cabinet and agency head and their deputies to write letters of resignation before the inauguration
Then choose which ones to accept by sundown of inauguration day
Trump should just fire anyone he wants who is under his Executive branch authority. He has the Constitutional power to do it, but Presidents have gotten sheepish about using the power for fear of Congress.
Sure, Congress can whine “oh, we’ll impeach”, or “oh, we won’t confirm a replacement”, but impeachment is not going to happen and there are ways to appoint whoever you like at least temporarily without Congressional approval. This is a separation of powers issue, and I’d like to see Trump put his foot down and call Congress’ bluff.