“Recently I heard that Valve, a highly successful video game company, has four hundred employees and no management structure. According to all reports, they make that model work. I spent a lot of time trying to imagine working for a company with no management. How do they resolve conflicts, set priorities, measure performance, fire laggards, and all the rest? I couldn’t picture it working. Keep in mind that I earn my living by shouting that management is mostly worthless, yet even I couldn’t accept the idea that management is 100% unnecessary. I was skeptical.”
http://dilbert.com/blog/entry/the_managementfree_organization/