This whole article is worth a close examination.
“The Guardian is reporting (heavily sourced) that the “mass resignations”of nearly all senior staff at the State Department on Thursday were not, in fact, resignations, but a purge ordered by the White House. As the diagram below (by Emily Roslin v Praze) shows, this leaves almost nobody in the entire senior staff of the State Department at this point.
As the Guardian points out, this has an important and likely not accidental effect: it leaves the State Department entirely unstaffed during these critical first weeks, when orders like the Muslim ban (which they would normally resist) are coming down.”
Full article here.