When he decided to transfer from Clemson, defensive tackle Josh Belk was afforded the luxury of an unconditional release, which allowed him to easily transfer to South Carolina. His future teammate Ty'Son Williams wasn't so lucky.
His former school, North Carolina, put restrictions on him that included not being able to accept a scholarship at USC for at least a year. He instead came to USC as a walk-on for his first season, with tuition paid for by the GI Bill (his mother is in the military). He was fortunate to have that option, and went on scholarship a year later, but many don't.