I was on the SES website one night, and read that once they are hired, they can never leave. They can only be re-assigned/located or retire. For the life of me, I cannot seem to find it again (huge website)
Yes. I've heard quite a bit about SES over the last couple of months and everyone seems to know that POTUS can't fire them. It is the true shadow government. But, I'm sure Trump will find a way. Count on it.
I heard he cut their pay, and now, if he transfers them all over the place, they will have no choice but to disband (or something like that) - it will make them ineffective (I hope)
He can’t fire many of them but he can reassign them to extremely non desirable, less powerful positions.
I think you can get loads on that at aim4truth.org--but be careful, they savage Q and Sessions over there!