I dont believe he is leaving. Im not convinced anyone else would have him. Always struck me as as a sad and angry man who could not really fly himself, so took great joy in hiding in is office cubicle on the ground and berating those that actually did the job when they made the smallest of mistakes. I had was grounded for a few months and had to do office duties. Interacting with him and watching him interact with others always made me wonder how he got the job in the first place.