Name names, Ron.
He can't do that yet because he doesn't have all the names, and many will change before a new Administration comes in anyway. Plus, announcing that you're going to fire specific appointees by name will lead to hundreds of sob stories the lefties will use as a wedge with independents.
In the past, many Presidents (and this includes Trump...) kept on a fair number of political appointee positions from prior Administrations even though they had the legal right to fire them at will. The argument was that these people had particular expertise that would be difficult to replace. The number is a bit over 4,000. A new President could simply clean house if they wanted to, and I suppose that's step 1.
The trickier part is getting rid of what's called "Senior Executive Service" employees. Those often are political appointees who managed to transition over to protected civil service jobs, and those are as Deep Statey as it gets. Getting rid of them is tougher, but you can do it if the Secretary of that Department changes policies and the SES types drag their feet, or otherwise refuse to go along. But you definitely can't announce those names ahead of time or they would almost certainly win an appeal and get reinstated. So what you must have are extraordinarily clear directives from Cabinet Secretaries, followed by rapid discipline if they employee fails to embrace those policies.
You've got to know how that system works to beat it.
