The American cabinet system, like ours, is filled with people from outside the civil service, very often from "private enterprise." In Canada many are more properly classed as career politicians, as distinct from civil servants. In the US there is a much higher percentage from "private enterprise" regardless of which party is in power. What makes the next administration's picks significant is the low quality of those picks. It's not that there is a shortage of qualified and able Republicans available; its just that this administration has a penchant for seeking out clowns. The best that I can say for them is that if your mission is to cripple the US federal bureaucracy, this is the way to go about it. There are already many hard-core Republicans - even MAGAs - already in the civil service who will execute even the stupidest of plans.
Let me be clear though. I fully recognize that Trump made no secret where he wanted to go and what he wanted done and 76 million Americans voted for him, regardless. This time he actually got the popular vote and no one can argue that the American people are not getting what they bargained for. I won't even argue that a correction in government bureaucracy isn't necessary as I constantly argue that its necessary here in Canada. I genuinely hope that things don't go too far under Trump because I'm one of those Canadians who genuinely likes the vast majority of Americans that I've met and I like their country. That's the problem when the clowns are in charge though. Anarchy, and believe me, this Trump administration is anarchy, is hard to control.