Not sure what exactly you mean by human capital issues. There are a couple things I can think you might be referring to but don't know which one in particular you are talking about.How did the red russians deal with the massive human capital issues of imperial russia in this short a time?
In regards to industrial workers, similarly to OTL there was a mass depopulation of cities across Russia as people sought safety in their ancestral villages before gradually returning over the course of the 1920s - this isn't much different from OTL. This in turn results in major increases in demand for agricultural products, particularly food, which is at least somewhat alleviated through trade with the Zollverein as has been covered plenty of times. If you are referring to the educational deficiencies, then it is once again somewhat similar to OTL, with trail-and-error as well as plenty of middle class and upper class "turncoats" finding themselves pushed into dealing with this sort of stuff. In general I covered economic developments in the Soviet Republic extensively in the final part of Update 36, which should hopefully answer all your questions.
Otherwise, if you could specify what exactly you meant I can give a better answer.