A recent ESPN Insiders post listed the best defenses by Football Outsiders DVOA in the last 30 years, and the 2002 Tampa Bay Buccaneers ranked as the greatest pass defense. The worst offense by DVOA is still the 1992 Seattle Seahawks, and we may never see a passing game that historically inept ever again.
This isn’t quite Breaking Madden, but it’s the much cheaper next best thing! Using the Whatifsports engine, I’ve simulated 12 games between the ‘92 Seahawks and ‘02 Buccaneers just to see the carnage.