Seems because of Supreme Court ruling practically every federal agency likely needs to be re-chartered to have the same structure as the Federal Reserve.
Depending how far the Supreme Council takes the unitary executive theory, we might need a straight up Constitutional amendment. And while we're at it, those department heads should be directly elected by the People - imagine being able to split your choices for which parties control the FCC vs the ATF.
(Ideally we'd move towards Ranked Pairs voting too, diminishing the two-party stranglehold as well)
Technocrats shouldn't be popularly elected. Someone like RFK Jr. would be more likely to end up in a top position under popular election, not less likely. The American public does not generally respect expertise, but politicians mostly did until quite recently (with a few exceptions like climate change).
Except that rejection of expertise has been building, right? To the point that people were decrying the bureaucrats as unelected, wanting to tear it all down, and here we are.
I don't think department heads were particularly technocratic, either. That was more supported by the laws/customs protecting the actual workers who didn't lose their jobs every administration. The heads were political - just political with an eye towards getting appointed/confirmed, rather than popularly elected.
As you say, the current profoundly corrupt Supreme Court majority will make up whatever justification they need to get the outcome they want, case by case, and don't believe in the concept of precedent, even their own.
The only thing that can be done is "re-chartering" the court – immediate significant expansion/packing followed later by drastic structural reforms.