Backup player?

I think clan wars should have 1 back up player in case a player leaves, that player can take their place. They'd have to be eligible. I get mad when a low level player joins and leaves, and a higher level player is left out because their trophies are lower. What do you guys think?

low lvl player leaves on purpose (someone's second account), high lvl player comes in and sweeps a few bases easy for 6 stars.
No.

No. The participants must be fixed to find a fair match, and keep it fair. Also for preparation and planning.

A better idea might be that the one starting the clan search may select who participates (or select a few that cannot, if they are new), similar to what is proposed in http://forum.supercell.net/showthrea...s-in-clan-wars