As a sports agent for 16 yrs, Joel Corry represented players such as Ronnie Lott, Hakeem Olajuwon and Shaquille O'Neal. Now a writer for CBS Sports, Joel is an NFL salary cap expert, and, like our beloved Professor, a man all about the numbers.

On this week's SCHOOLED, Joel tells Clayton that we are seeing a shrinking middle class of NFL players as salaries get to a level they have never reached before. Joel also takes a look at changes the NFLPA might be looking to make in the next collective bargaining agreement and breaks down what the Seahawks will need to offer in order to re-sign Justin Britt, Kam Chancellor and Jimmy Graham.