Soliai needs to understand the position he is in. He has a chance to be an NFL player and star or does he want to be just a fat guy who could of. Maybe someone close to him gets him to turn the light on.
15pds is not that much when you're 6'3 or whatever, the real problem is he doesn't take staying in shape seriously, that will see him moving out of Miami.
While discouraging as to his dedication, a big fat guy like that can lose 15 pounds sweating at mini-camp in a few days.