‘James Cook early and often. The Bills’ running back is coming off his second game this season with 100-plus rushing yards. A huge portion of that came on one play against San Francisco. What was offensive coordinator Joe Brady’s favorite part of Cook’s 65-yard touchdown run last week against the 49ers? “My favorite thing was not having to call another play,” Brady said Monday. “You know, I like that.” A one-play touchdown drive is no guarantee, but if the Bills can get Cook some chunk plays on first downs, that will keep the offense on schedule and will keep Brady’s play calls open. Even without the snow-based rushing calls of last week, the Bills can stay balanced if Cook gets things going against the Rams.’