No one Trump has placed in office was placed there because of their competency. They were all placed for one particular reason, and that is just they are loyal to him. That is also why Hegseth is firing competent military officers, hindering the promotion of others, to make sure that those who do rise up are loyal to Trump's ideology.
The highest levels of our Executive Branch is run by people who are not beholden to the Law, but are instead beholden to the whims of a mad man.