Sometime stats lie. Let's say, for example, early in the season, you tacked on a 30-40 yrd run, during the last two minutes of a game, your team was behind by 17 points, and the D was playing Prevent. Your stats just improved, and improved a lot. It is the same with passes caught, same situation, you get 3 or 4- 1 and 2 yard gain passed (again against a Prevent D) your stats just improved. In the early part of the season, 20 yard running gain is a lot on the ranking board (yards gained), but as the season goes on, not so much. Every year you can see RBs go from top 10 to top 20 in a week or so, they haven't gotten worse, more data, better results...