I hope this is sarcasm. Because what I saw was a quarterback go 3 and out for the first 3 1/2 quarters while the Denver defense kept the team in the game. Those were some of the flukiest wins I ever saw.
The Denver defense that year has been the recipient of some great revisionism. 'Point allowed' is the only defensive category that they were not well established in the bottom half of the league.
http://www.pro-football-reference.com/years/2011/opp.htm
Last year they were the 4th best defense in the league. Got Mr. Manning all the way to the playoffs...