My bad. I realized I was counting Bodway after I posted, but was too lazy to edit it at the time. To be clear, scholarships are given on an annual basis. There is no 4-year athletic scholarship. The school either renews your scholarship annually or not. Jupiter, his end of the "contract" is that he participates with the team each year he is given a scholarship.
Obviously, the intent is to have an athlete in your program for 4 years, but if they fail to perform up to the required standards, it's fairly common that they are asked to look for another place to continue their athletic career. Who's to say that Coach O didn't have that talk with some of the guys that are transferring this year. Calipari/O got to Kentucky and told 7 returning players on that team that they were free to stay at UK, but they would never see the floor if they did. Six transferred.