I know the problem of burning through people prepared to be on the EC and we have a 3x bigger pool to call on. The present EC are hanging in and slowly winning a bit of ground with each battle but it is a ridiculous amount of work for volunteers. I like to think the small but noisy group who have opposed every sensible move of the last few years is gradually getting discredited. However, we have the high ground on being on the EC. I guess from their point of view we are the clique who has taken over, certainly that is the rhetoric put about. It would be harder from the outside. Unless things are really desperate I would suggest tackling one achievable issue at a time and make sure you go to the general meeting with all the expert opinion readily to hand etc. Get a couple of allies and don't exhaust yourself on every issue all at once. Pick the issue that will make the others look most silly and irresponsible.