All elected positions of responsibility would be maintained, and the SM/SPL opening the meeting would rotate every so often, time frame TBD. A single common program would be settled on, I'm thinking that the longer things go, the easier it would be to have everyone on one program anyway.
As far as any kind of an exit strategy once there are enough for each participating troop to be decidedly more self-sufficient and competitive with the larger troop, my attitude was that we would cross that bridge when we come to it, since it could definitely take a while to achieve.
I would imagine th