One thing this article doesn't mention is that if you start with a 'single-player' environment it can be hard to get people to change to 'multi-player'.

Not only because of habits, but also because people have set it up just for them and they feel they need to tidy it or make it good enough to share with others.

Having a very clear delimitation between what is a persons and what is a teams/organization is really important when moving from single -> multi.

I would love to hear what things people have found worked really well too!