Up to 18; Air Force was added.
Starting to remind me of the wedding feast from the scriptures … everyone was invited … the blind the lame the homeless the beggars and thieves … well maybe not the thieves … 
thieves were invited - little 10
If invited in October, would this be enough time to start playing in 2017? It would be less than 1 year notice of leaving the AAC, but it seems like TCU got an invite in late Fall and started playing the next year.