The ITS 11 document no longer makes any reference to leagues. Instead, there's an escalation tournament type. If I want to run a league (escalation or otherwise), does that mean I just run a "tournament" but spread the games out over a longer timeframe? Also, do the games have to be scheduled on specific days, or can I leave it to the players to organize their games (i.e. this is round 2, Alice is playing Bob. You two need to play the tournament game sometime in the next two weeks and report the result)?