As there is a new contest with asso groups, I post here what I was thinking before long time.
Ok, so the captain decides for everything, he has total control of the groups, can kick out any member or even the vice-captain.

The vice-captain can do some actions but only if the captain agree - or else can change to default and kick out the v-captain.

Is it fair ?
Doesn't look so.

How about to add a new rule ?
The captain cannot kick out (or demote) the v-captain, only the simple members.

If one weekend the v-captain won't saw in any of the four games of the group, he looses his title and becomes a simple member automatically .

Then the captain can kick him out or make him again vice captain (if they are aware of his absence) .

Any other ideas against the dictatorship of the captain ?