In the movie Ragtime there's a scene where the wild-eyed anarchists/terrorists are holed up in a library and Jimmy Cagney - in his last film role, BTW - as the police chief is trying to organize his guys to deal with this problem. As he's trying to make some order out of this chaos up comes this painfully earnest scholarly type who announces that he's the curator of the library's priceless collection and that this situation must be handled with the utmost care.
Well, replies Cagney (in that terrific back-o-the-yards Cagney snarl), why don't you go in and tell those guys that?
Are you joking? replies the librarian.
My good man, says Cagney, so long as those guys are in there, you are not the cu-ra-tor of anything.
So, with that in mind, I guess we're beginning to see the answer to the question of "Will having H.R. McMaster as NSA have the effect of bringing some sort of adult supervision to the foreign policy/national strategic thinking of the Tangerine Toddler?"
I note in passing that FOX spokesmodel/Islamophobic-Amway salesperson K.T. McFarland is still in place at the NSA, as well.
Oh, well. It was a nice thought while it lasted.
Update 3/26: Fred Kaplan at Slate has a worthwhile discussion of this issue.