Yep. I'm not worried but this is his next step. He seems to have the frame and durability to be a 20 carry/game back and I think it is likely he gets to that range of touches. Right now I think we're going to see our offense scale back the passing game utilization a bit and get better play from the defense. I think Tua throwing for 4000 is almost as likely as Najee running for 1500 next season. When you know you're dominant at QB and WR, sometimes establishing that you're a run-first team by tendency allows you to pull the wool over better defense's eyes later in the season when the competition improves and opponents playing to tendencies improve with it.