I think this is a different question. The previous thread talks about how many laborers a foreman can supervise. This thread is taking it to the next level. How many crews (foreman/laborers) can a manager/owner supervise and sell work for. Once a company gets to the multiple crew size---developing a way to adequately oversee the work performance while also selling new work and assuring customer satisfaction can become a challenge which can be met in various ways. This is when reports and systems become more important, even if they aren't terribly formal.