I agree that defense is important. No doubt.....I just don't agree with this notion that its so much more important than offense. Its easy to watch the Broncos win the superbowl and proclaim the code has been cracked. The reality is much different. Scoring is just as important as stopping the other team from scoring. Its also important to realize that having a defensive unit come together and play the way the Broncos have played this year isn't as easy as just adding a few pieces in free agency and the draft. Just as the Panthers don't have the most talented offense in the league (even when they were putting up crazy points at will), the Broncos don't necessarily have the most talented defense in the league. The reality is that there is no exact formula for winning superbowls and it can be achieved in many different ways.
We spend so much time trying to find the secret formula for winning....we hear about WR's not mattering, RB's not mattering, QB's only need to be bus drivers, OL being the most important, Pass rush being the most important, Shutdown Corners being the most important ect ect....
This sport changes from one year to the next. Worst to first isn't uncommon. First to worst isn't either... there isn't only 1 way to win. The game has too many moving parts.