Yeah, but a selection/pool of exactly 3 sources that you then just assign to each team member, or a pool of about 20 sources, so you actually get some choice in the matter? I feel like if it's the prior, at least one member of the team will just have to 'settle'. All 3 members of the team might really want to be doing sources another team's been given, and hates all 3 of the ones they've been given. I'm just wondering how much variety and choice we really get.
If people have specific sources foist upon them, I feel like it would be an unfair system, because some teams will end up with a higher level of motivation than others purely because of the sources they've been given.