Just a guess, but if this really is a military operation, then Trump could appoint every corrupt person that would actively try and subvert things while the military watches, giving them everything they need to bust them all.  Once the military steps in, Trump can't be accused of anything since those he appointed tried to undermine him and committed crimes.  He becomes an innocent victim rather than an active participant, keeping the military investigation more politically neutral.    Just a guess, hope we find out soon.