I would like to be able to sort the players by their alliance, or have separate boxes for each alliance besides a main list with all the players. That would make sorting teams much easier and faster.
Secondly, I'd like an automatic balancing function. A "Balance" button with some flags like "[x] Arrange clanners on the same alliances" or "[x] Arrange players from the same countries on the same alliances". The flag rules should affect balancing as far as the alliances don't go clearly unbalanced (eg. if over half of the players are in the same clan).