I think the AD is doing a great job. Being the AD at a Catholic school where a bunch of public won't play you to start is hard. Then you have to factor in the schools that are willing to play you and if they have a common open date. It is not an easy job.
I look back at my single life. I would have loved to have gone on dates with Carrie Underwood, Emma Stone, Mandy Moore, Avril Lavigne, Danica Patrick, Britney Spears, Jennifer Aniston, Tiffany Amber Theisan, Miranda Lambert, and Jessica Biel, but none of them agreed to go on a date with me. I ended up with my wife and I am happy about that. Sort of like Elder finding games. Sure they would like to play Oak Hills, but they got Roncalli. Both parties have to agree to the game and when you have Harbins, expenseses, and a lot of other things that need to happen to make it work.
Some of the GMC teams don't match up well with the ECC teams. Sure Milford, West Clermont, and Lebanon can match up with GMC teams, but who does Little Miami and Walnut Hills match up with? They are better off finding their own game.