The Trump Administration has always been playing music chairs. The secretary of state job in Trump’s first term was filled first by Rex Tillerson, then by Mike Pompeo. Reason? T Rex was smart and capable yet he couldn’t stand Trump’s ridiculous thinking of managing business partners and allies. That is the same reason for Mad Dog Mattis’ short tenure as Secretary of Defense. A experienced and respected military man would follow protocol and not put up with Trump’s illegal manoeuvres to get things done