Depending on how it's implemented, it may be possible to have your online league play *completed in background.* I think that's shadia's point.
Basically, PS3s hosted by SCEA runs scheduled CPU vs. CPU games. You can either watch it real time or just have them run without you doing anything. Maybe the server keeps the replays/digest of the game so that you can watch later? You get the idea...
That would be ideal for guys who want to manage GM-aspects, but don't want to/have time to actually play for an hour a game.
Currently, I think you can listen to SportsCast radio between two online players in real time (at least you could in 11). It would be interesting if you can watch such a game in the regular gameplay mode (or some derivative of it....)