Fwiw, I couldn't disagree more. If the "middlin" years had an identifiable problem, it was clearly D. This point has been argued to death imo, and if you had any data to support your opinion, you'd be the first in four years. Remember w-l is a team measure not an O measure.
I agree that the D was the downfall in the "middlin" years, but....
The D wasn't exactly head and shoulder's better in '14 yet the team did significantly better.
Here's a comparison between the '11 team that went 8-5 with Tevin, whom I've always supported and admired, and the team that just won the OB.
................
Comparison of Key Stats (rankings) Between the '11D and the '14D
.............................................
'11 defense...................
'14 defense
Scoring D.................................60....................................53
Total D......................................43....................................81
Int's............................................31....................................10
Fumbles Forced......................50....................................11
Opponent 3rd down
conversion rate.......................83...................................114
So in summary, the '14 D was much better in forcing turnovers, but that was it. Scoring D was very similar. The '11D was significantly better in both opponent's 3rd down conversion rate and total D. I'd call it a wash. So why was the '14 "team" so much better? Was the '14 offense that much better? I don't think so. I think it was clutch plays. Both sides of the ball were much better in clutch time in '14 than in '11. Remember how many games we lost by the slimmest of margins in '11. The converse was true last year.