What does it mean to be in an alliance but not in a cooperative? Is it like, not notarized? :)
Exactly, what if all 3 players are left behind? As previously mentioned, you naturally climb higher, which means they get less – that's understandable. But what do you do if one of them is at the top, and the rest are in trouble? You probably won't even know about it...
And since it's not a cooperative, everyone gets what they deserve.
Are you also going to suggest calculating a rating? At least tell me the main criterion for this action...
And regarding the example, you want the rating and the position to roughly correspond to each other. If you think this is possible, feel free to suggest it – no one will be offended. If you have other ideas, we're listening...
But in the Iron system, the rating is the main factor, while in the Amber system, the position is. I'm not going to come up with anything more (or they'll eat me alive:D)