The Trump administration has such a high turnover for several reasons, none of them good. First, because they appointed complete morons who were incapable of their jobs and should have never been in that position to begin with. Second, they were lying or engaging in immoral, unethical, or perhaps even illegal activities. Finally, they were actually decent people who called out the idiots in the other two groups (or Trump himself) for their questionable ability or moral compass, pissed off Trump because of it, so he fired them. But seeing as Trump repeatedly tells us how he only hires and surrounds himself with the "best people," it kind of laughable. He truly believes that and still claims that, while all of these people get fired, which just proves he really is the Alpha Idiot.