No, he wasn't the 4th best RB in the NFL
He was after week 3.
He accumulated the the 4th most rushing yards. All other production disregarded. Other RBs had more overall production....list was longer than 3.
A lot of teams were also getting a lot more out of their collective RBs as well. Which is really what matters .
Williams stat was in large part bc our 2 other RBs were injured. A team like HOU was getting better production from their RBs
Williams has been good. He isn't paid for good.