It's interesting to me that firms do some of these things internally (e.g., maintaining a 100 person organization unable to make a profit) but firms have an outside source of discipline such as the market, whereas the Communist society doesn't.
Communist leaders face political discipline - ie. dissatisfied people may strike/riot/rebel, and your competitors within the political establishment will take advantage of your failures.
Some may say that the outside world work as a discipline, as the market is the outside world for firms ...