How about Creative Groups ?
They will make up ideas,design mock-ups,etc. to improve TGTAP. And then they will submit them to the staff who will then approve/disapprove them based on how good the idea is. Maybe, this will even slightly lessen the work required to do by the staff.
However, like gangs, they will not have private sub-forums. Instead, they will have a public forum, in which anyone and everyone can contribute and help. So, this will probably not contribute to the inactivity of TGTAP - like gangs did.
So, does it make it ?