I agree with Mistress, Leading a league is not hard just tedious. I only learned from this event from someone passing me leader randomly. I generally just try to keep a extra 50 on each team and remind TLs periodically that they should pass lead prior to leaving league. Of course not everyone does, it is pretty easy to fix level problems as League leader if the teams aren't sitting at a close to full 6 teams. Just move the leader of the under leveled team to another team until that team has a 50 leader then move them back into it after. Keep track of the amount of people on teams since turnover of players will be high so you should be ready to consolidate teams when need be. Also Spread out the MMs since their pets contribute significantly to the XP of the team they are on.
Those are just things I do and I know not every League leader handles it like me so as long as levels are fine people are usually happy.
