Maybe they have tried to get kids into their program? You have to remember NKU is only in their second year of D1. They couldn't compete with the other schools that have been mentioned earlier, so they had to go elsewhere to get talent.
How do you figure only those 4 will have a chance to win? As Big Cat said, the guys Dingerbird listed are all close in talent. Now if you take in fan votes and hype then the guys you listed will probably win.