I don't pretend to know a whole lot about Isaac. He looked fairly good to me on the DL, but maybe I am unfairly damning him with faint praise. I googled his name and found this NFL draft report on him, which ranked him as the No. 43 draft prospect at his position, and a prospective 6th round pick. He's a junior, so he has eligibility left. My uneducated guess is that he not only wanted to return, but felt that he could improve his draft position with another year of weight training and playing college ball. Would be interested in what others here think.