The way cheating is today, kids are getting paid to go to schools and the coaches don't have to know anything if they don't want to. Izzo is one of those guys though that is going to make a point to find out. The boosters have their bag men, it's obvious who the top targets are for their school, they can pay kids without a coach knowing anything. Then they can pay to keep a kid after he's given a verbal. It's said the going rate for a top 100 football player is $1000 to not visit another school.
Caliparri has been a cheater for a long time, but I don't even think it's necessary where he is now. UK is an NBA factory and Calipari regularly produces 5+ 1st round picks a year, heck, he's got players getting drafted in the 1st round who came off the bench for him. Kentucky is also really pushing the envelope for the facilities they provide their players with. Gourmet chefs, massages, girls, all while living in a mansion. Playing ball for UK is almost like already being in the NBA.
Recruiting for football in the B1G is starting to get really dirty. There's been an influx of slime balls the last few seasons.