I mean in the scene with Tom, etc going over killing Roth. That way he cuts down Tom verbally. That he assigns one of his guys to a suicide mission without so much as a second thought. That he coldly slams the door on Kay's face. THAT Michael. What is going through his head in that point of time? Not in that exact moment; I mean overall. The Michael feels "I don't need to wipe out everyone. Just my enemies." When he also kind of implies everyone is his potential enemy.