Distributed, Collaborative Development - NOW!

Companies that aren't managing IT projects using distributed, collaborative development are behind the times. The open-source methodology for developing software has proven itself as highly successful. Why do so many companies still require their programmers to be on-site? Open-source projects (ex. Mozilla) are managed and coded by people who have never met and they work very well. When are software companies going to get the message? The technology exists, it just appears as though management doesn't know how to wield it. So, managers, if you don't know how to manage a team of developers that is geographically distributed around the world now is the time to learn.