Lenin spoke of a “retreat” to “state capitalism” but “not too much” on the path to his New Economic Policy. He was essentially admitting that socialism inevitably bogs down and progress forward just isn’t possible when all individual self interest is suppressed in favor of the collective. IOW even Lenin knew you don’t kill off the producers too quickly. You have to phase them out gradually. The end result, though, is the same.
He also wrote a very interesting piece entitled “The Importance of Gold, Now and After the Complete Victory of Socialism”. Gobbledygook in which he essentially admits the new ruling class needs to hunker down and cover their own butts because the proletariat may get a bit uppity.