We've heard quite a few times before that WoW can help you on the job, but I don't know that I've ever seen the roles detailed so clearly. Josh says the Main Tank is the outside communications person for the project, and fends off managers and other departments to make sure members can get their jobs done. The Main Healer keeps motivation up rather than hit points, and make sure everyone stays on task and working. And the DPS are the meat of the project, doing the day-to-day damage to accomplish objectives. The idea works pretty darn well, actually-- at least until your project manager starts taunting the CEO and your senior producer stays up late one night and catches aggro. But definitely an interesting read if you've ever been given the task of running a team of people, in or out of game.