Second Interview.. what to ask the new interviewer!? Event Coordinator position....?

I am interviewing with the district sales manager for the position of event coordinator for conventions/meetings/weddings, etc at a local resort/hotel/conference center.
I interviewed with the HR manager and Sales Manager already and asked a few questions.
What should I ask the District Manager? The HR Manager who is the one setting these interviews up, always asks me if I have any more quesions about the job when she calls me, and when i left the interview asked that i call her if i have any other questions... so it seems she really likes questions.. so i think i need a bunch! I already asked who works in the department, what type of business do they do most, what qualities they look for in their coordinator..
help please!
thanks!

whats the most popular event they have? what was their best experience? what was their worst experience? how much time and research is done for each event? what outside sources do they rely on for supplies? what different positions are responsible for what?
hope that helps some