These selections are made in deference to the MIC and the battery of War Profiteers who have been made FAT on the endless continuum of illegal Wars of Choice.
When a pundit makes the case that it's mere statecraft or the mark of a particular Presidential personality that makes for the seamless continuum of pro-war entities (left in positions of high authority) it hides the fact that our nation as been gutted and is no longer a functioning Democratic Republic.
"However, to ease tensions with the Clinton wing of the party, Obama selected Clinton to be his Secretary of State, one of the first and most fateful decisions of his presidency. He also kept on George W. Bush’s Defense Secretary Robert Gates and neocon members of the military high command, such as Gen. David Petraeus.
"This “Team of Rivals” – named after Abraham Lincoln’s initial Civil War cabinet – ensured a powerful bloc of pro-war sentiment..."
The above framing reminds me of those pundits who insisted that Bush, Jr. went to war in Iraq to avenge his father's unfinished business there.
It's an Inverted Totalitarian system with corporations and the military running the show, setting the agenda, and calling the shots. To pull this off and retain their (Deep State) cover, Power makes use of its loyal tools.
THAT is why these people are set (and kept) close to the apparent throne.