I don't know if he is just wearing down or was just not in good enough shape last year. I didn't think he looked like he was in the best shape he could be last year. Getting a huge contract and a huge head at the same time didn't help matters. He can be much better with an improved line and improved conditioning but He has to want it.. Even if he isn't the same runner he was 5 years ago, he can still be effective if he puts in the work.