Football Outsiders lists six Ravens defenses in the best of the last 30 years
ESPN Insider, with the help of Football Outsiders DVOA advanced-metric system, ranked the thirty best defenses over the last thirty years. Six Ravens defenses were among the thirty defenses listed, and you can make a case a couple of them should be higher than they are. Below is where the six Ravens defenses were ranked and the Football Outsiders statement on each of them.