[Traster]

There is people management, and then there is management. A good people manager could manager the janitors as well as the marketers, but they aren't going to have the expertise to be able to actually put together a vision for what a team should be doing. That comes from domain expertise, not from people management skills. People managers are very good at lower level organisational roles because you don't need to set vision, but beyond relatively small management roles the key skill is expertise -because everyone already has people skills at that point. Employing good people managers to be senior leaders results in stagnant companies.