Wait a minute people, aren't we talking about balancing the team's skill?
because it seems like we are going towards how one should join un-stacked team.
i believe pub games in CSS is usually decided by three of four Pro's in a server.
If we were to balance the team's skill, then we should chance 1st, 3rd, 5th, and so on, only odd numbers to the opposite team, and do same with the enemy team as well.
I guess this is called "mixer" method.