Hm, I don't think it's strictly every job, but it's a common syndrome. Say for example a surgeon - in my mental model he moves from being an assistant during op

Hm, I don't think it's strictly every job, but it's a common syndrome. Say for example a surgeon - in my mental model he moves from being an assistant during ops to leading op teams or research. I might have a completely wrong model how surgeon careers progress, though :P But in general it makes sense for experienced people to move into managerial roles where they can leverage their knowledge on a meta level, rather than purely object level work.