Sounds like a new Director of Education in a large LEA I came across many years ago. Couldn't stop talking. There was no way anyone could ever have had a reasoned conversation with the person to change their style as a two way conversation was not possible. A meeting that started before lunch could see the sun setting, and no useful action following it. At the next inspection of the LEA it had to be taken over by a private company. It seemed like a sledgehammer to crack a nut. If there's no pressure from somewhere on him to leave, you'll have to. Who selected him? Why?