Management is a skill. You can collectivize property relations and keep the positions of Capital Managers. Moreover, in underdeveloped sectors, Markets are a good way to rapidly develop a framework that can then be folded into the public sector and centrally planned by the degree to which it has developed.
Do we need Capital Owners? No, we don't need any. We will still need managers and directors of Capital, even within Communism, ie Central Planners. If the question is how many Capitalists do we need, the answer is 0. If the question is how many Capital managers and planners do we need, the number is much higher than 0.
