The ESPN piece by Rob Neyer, linked at the bottom, details some context: http://sports.espn.go.com/mlb/hotstove06/columns/story?columnist=neyer_rob&id=2751842 h

The ESPN piece by Rob Neyer, linked at the bottom, details some context: http://sports.espn.go.com/mlb/hotstove06/columns/story?columnist=neyer_rob&id=2751842 http://sports.espn.go.com/mlb/hotstove06/columns/story?colum... I find it interesting that new metrics still pop up for something over a century old ...