I think you are a little confused.
If you purge the government of the people who know what they are doing, the government is not going to know what it is doing. It's really not complicated.
What kept Trump's first term from being more of a shitshow than it was is that the people who knew what they were doing were still there.
Thanks to Gauleiter Elon, that's not going to be a safety rail anymore.
"Wow, we barely survived that crash. Let's do it again, but first let's cut the break lines, don't put on the safety belt, and disable the air bags!!!"