Absolutely. And there's a thing called The Peter Principle that states people will get promoted to their level of incompetence. Someone might be a great technician, a good trainer / front-line supervisor, but only marginal as a manager. The question become: what do you do with him now? You can't really promote him to superintendent, where he can really mick things up. You can't demote him back down, and if you let him sit there forever, it causes a bottleneck blocking others from moving up. The only real answer is to force him to step aside at some point. You can't do that in today's US military. We have (for now) a fairly strong Up-Or-Out policy. Unless one is prior-enlisted, you pretty much need to make O-4 Major / Lt.Commander to go a full twenty years.