There is an old, open secret in college basketball recruiting: if you want to sell a kid on the winter roar of an arena, you first walk him through the autumn thunder of a football stadium. Basketball is an intimate game played in warm, brightly lit boxes, but football is weather, brass bands, and civic theater. \ When a program hosts a priority recruit in September, the football game isn't merely an itinerary filler between film sessions and campus tours—it is the living, breathing proof of a university’s pulse. It is the spectacle that shows a high school prospect what it feels like when an…