One of the problems that will have to be addressed is how the activities of a multitude of autonomous enterprises producing for a market can be reconciled with rational economic planning.
The abolition of capitalist ownership and control and its replacement by social ownership is itself a great step forward. But it will not resolve the anarchy and planlessness associated with market forces. For example, if we have several autonomous enterprises producing the same commodities, that is, competing with each other in the market, just as under capitalism, some will be more successful, others will go to the wall, and we will end up with new monopolies (although these will be cooperatively owned), while the workforces of the failed ones will become unemployed. Some sort of overall regulation of the different sectors of industry would need to be enforced to prevent this, and to regulate the optimum number and sizes of the different enterprises.