'Bills play-by-play man John Murphy has dubbed Karlos Williams "Special K". The name should stick as long as Williams keeps at it. Between Williams and McCoy, the Bills have a pair of very good running backs. Don't be fooled by the struggles of LeSean McCoy to this point. When given space, he's proven to be a dynamic runner this year. He's also proven to be quite valuable in the passing game, both as a receiver and a blocker.'