[robswc]

Well, I wouldn't say specialization was "avoided" more so it was just incredibly difficult due to it being a planned economy.

https://en.wikipedia.org/wiki/Council_of_Ministers_of_the_So...

This may provide some insight. I don't want to claim to be a USSR historian, I've just done some light research on another topic that crossed paths and I fell down a well for awhile lol.

The problem was that they were so centralized, it made innovation incredibly difficult. Simply put, if there were problems, even if people had solutions, it was damn near impossible to get anything implemented.