I've been thinking this for a while, but haven't yet said anything.
While I think our T.O.'s do a fantastic job in general, and put up with lots of complaints with great patience, I think there is one area in which they could improve.
Simply keeping the tournament moving on schedule would make a big difference, as it stands many of the delays and problems in my experience come because a T.O. is trying to be fair to the players in an earlier bracket and have allowed them to keep playing as opposed to having declared a winner by coin flip earlier. In my experience with paper CCG tournament play each game was given a fixed length of time to occur (usually 45 minutes) and then there was a brief break (usually 15 minutes) before the next round began. While this schedule is too generous for our tourney environment, sticking to perhaps a 25 minute round (with 5 minutes between duels) could do wonders for keeping us on schedule. And while that might be too tight it at least provides us with a starting place.
P.S. It is not said enough, "Thank you to our T.O.'s for your hard work, your patience and your sleep deprivation - it is appreciated!"