There is never a point in your career in which you can’t learn something. Even if there is a point at which you seem to know everything that there is to know, the reality is that the game changes every year—even every week—as do the people who play the game.
T.J. Watt of the Pittsburgh Steelers is one of the true elite talents among edge defenders in the NFL right now. While much of that can be attributed to his physical assets and his fundamentals in his craft, so much of it is learning. Learning about opponents, both generally and specifically.