Aren't the key requirements already in place for most comps and just need a little tweaking?
e.g. CL5, 14 player minimum requirement - simply add "active" in a recent time frame. 10 player "provisional" list - remove "provisional"
As long as whoever signs a clan up to any comp has agreement from 1) sufficient active members of the clan to meet the active players requirement and 2) those players listed we then have a commitment from the clan and the players listed to fulfil whatever fixtures may lie ahead. Players moving clans are cup tied for that round, if they're one of the listed players then they should be cup tied for the whole comp as they have (theoretically) agreed to be a key player for their clan in that comp.
No idea how other clans organize or discuss things, but we have threads devoted to upcoming absences and for anyone to highlight they're struggling with game load. When a new comp or war are possibilities it's made clear what we have ongoing along with other future commitments to determine if we're capable of taking on something else.
The clan comps schedule could really use a bit of joined up thinking, too many comps starting within a few months (or even at the same time), spread them around the year better and clans won't have to choose whether to play in one or two of them rather than all of them and the higher ranked clans won't be running into each other in the later rounds at the same time either.
Given that for most they are paying to play then any punishment that is likely to see players leave CC or a clan disbanded is a step too far (unless there are serious site rule breaches taking place), draconian rules and heavy handed threats/ enforcement is not the way forward.
