Besides demoting some people. Who would be put in there spot.
I say we recruit from the official forums.
The only issue with that is as far as I know we would like to keep it as Gaf members only in the alliance. We do have a few people who aren't in either alliance that are decent players that are interested in joining gaf-vengers if we can make it so it gets a top 100, but in general I think the plan would be to keep it just within the gaf alliances and hope the weaker players play their way up... for example we have one member right now in gaf-vengers who is a weaker player, but has been continually improving, which was the original goal of the alliance to build a top tier team from the ground up, but alas not everyone is equally as dedicated..
I do agree swapping last minute isn't a great idea, but alas one issue we have is there are a few players that only really play pve or pvp... so while they are one of the top members in one, they are holding us back in the other, so it's really hard to gauge their overall worth to the alliance.... the whole thing is bleghlarrific (my own word... meaning full of bleghness) I'm trying to get our top players in the forums here so we can talk about what we want as we need something people can agree on.