It’s been more than 30 years since Nick Saban and Bill Belichick first worked together. That was with the Cleveland Browns when Saban served as Belichick’s defensive coordinator, and the rest is history. as they went on to become two of the greatest football coaches of all time. But they not only became colleagues back then. It was the beginning of a beautiful friendship – one that’s continuing as Saban and Belichick enter their next chapters. Saban concluded his 50-year coaching career in January when he retired as Alabama head coach after 15 years and six national titles. Belichick, meanwhil…