Just by chance, I saw an interview of Reince Priebus by Laura Ingraham last night. Priebus described how Trump works. Unlike most people who seek uniformity of thought, Trump seeks out different personalities and vastly different opinions. He likes the debate and conflict, as he feels it gives him the widest viewpoints, from which he then can choose. He also wants results on actions. Its definitely not an environment for job stability.
Looks to me like Trump likes debate to a certain point. Anyone who disagrees with him doesn’t seem to be lasting long.