My theory is that before becoming President, The President was accustomed to hiring people on a whim, knowing that if they didn't deliver, he could give the famous 'You're Fired' line. Now with politics involved, it is not that simple, even if he has the authority and the the right. Jeffie "Do Nothing" Sessions is a perfect example. Count on the dems to try to make hay from this.
They're on pretty shaky ground there.
I read some where yesterday that 0 quietly chitcanned around 175 very senior and very "traditional" officers from our military during his first term.
Be pretty hard to hide that fact if someone wanted to compare the two president's actions.