He actually has to rip apart more than a few who either hesitate, for quite a bit, or only accept, because of the intimidation, but are clearly planning to betray him, thinking he's bluffing. It seems they either have quite a bit of loyalty to the army, or, more likely, more loyalty to disrupting his plans, and short-term gains. Of course, a fair number of those losses might be noticeable, even with his replacements.