Tom Brady's work ethic is what makes him great. He never forgot that he had to share time at Michigan with Drew Henson and was the 199th pick in the 2000 NFL Draft. There are players that are more gifted that TB12 but I find it hard to believe that many will outwork him.

http://www.espn.com/blog/new-england-patriots/post/_/id/4810525/tom-brady-gets-to-work-on-players-day-off-at-gillette-stadium