It seems clear that LTG HR McMaster will be leaving for "home" in the Pentagon where he will be given a fourth star as "hush money" for his experience at the WH. "And angels sing thee to thy rest ..." Oh, well people come and go.
Who would be the new NS adviser? Why not Sean H, the world's most eligible jingoist high school drop out? He and Bolton would work admirably together. Two ferociously Type A people (a sort of people), both are filled with vindictive animosity directed toward any possible international rivals or any rival at all. They could team up with Pompeo and the torture lady who will be head of "Christians In Action" to form a Team of Sycophants competing for the fleeting attention which the Boss (Mark Twain reference) seems to give to those he saw last in person or on 24/7 TV.
Who would be next? Ah, yes, Brother Mattis might talk back once too often. In that contingency General (Ret) Jack Keane (Fordham accounting man) stands ready in the wings. pl