I have to agree with Storch. I also suggest that the entire CT staff make it their responsibility to drop in and monitor the arena on a regular basis (even if it's every couple of hours during the day/evening primetime hours). Perhaps it wouldn't hurt to recruit staff volunteer candidates who play the game during Euro hours (who may, as an additional beneifit, recruit more eurotime players).
Basically, I think a duty roster needs to be created and maintained. Understanding that the positions are voluntary and we all have real lives and occasionally emergencies that need attending, the entire staff needs to wear a "beeper", per say ( posted messenger addresses will do) that players can get from the motd or some such public place. That way the staff can help each other out as well as help out the CT players. A broken arena that is left broken for long periods of time won't help promote new blood.