Automatically add players to some newly-created teams but not others

[Toronto Blizzard]

I expect I already know the answer to this, but thought I'd ask anyway:

I have created a number of new teams for a network game with some friends.  I'd like each of our teams to start with no players, but would prefer if the other created teams had players.  Creating entire rosters for all those other created clubs would take a long time, but clicking 'add players to playable teams' at the set-up stage would put players on our rosters.

Does anyone have a solution

Much obliged.