In pro football today, it’s good to be a stathead. Coaches use stats to decide which plays to run, how defend against each opponent, when to go for it on fourth down, and when to punt. Players use stats to train and prepare and to get an edge after the kickoff. And sports reporters rely on data to describe the games. Today’s football fans, who always want to be in the know, get more out of the action by joining the ranks of the statheads.