I think we should have a different approach with CG4, where we have a secret forum for the game and while one person coordinates stuff, the finished parts are posted on the forum where members can play them, fix the bugs, send it to the next person, in other words everyone becomes a 'Belross' :P
The bad side is that it might be less exciting to people who are part of the chain game because right now you only know what happens when you get the game.
But again, you also spend a long time playing the parts before you and going through lame bugs.
That or have people to help the coordinator. We tried this with this game but it didn't work for some reason.
Also Master of None, this is not totally random, I think allowing people to work on parts at the same time will not work for chain games.... or at least, it wouldn't be the chain game. (that and I don't want it to turn into ALEX... that's mine!)