Yeah, I love the feeling of being in one of those teams. It's a possible idea, but don't know how it would scale beyond one team. I tried to find projects on behalf of a number of great teams a few years ago, and found I'd always bias the #1 team in the set if they were available, because I felt like I had a better chance of a great outcome on the project.

And these teams rarely invested any time in training up their own reserve bench, so often a team would be suddenly crippled by one team member needing to take time out to e.g. start a family. The team would start falling apart as other members were forced to leave the team to find gigs solo.