Here's how the Vikings have improved on offense, percentages and rankings from Football Outsiders:
|Season||Pass Offense||Pass Rank||Rush Offense||Rush Rank|
Here's their defense, percentages and rankings again from Football Outsiders:
|Season||Pass Defense||Pass Rank||Rush Defense||Rush Rank|
One other key addition is rookie kicker K Blair Walsh, who's been a big improvement over former Packer K Ryan Longwell, and he's carried the Vikings' special teams up to No. 6 overall.
Bottom line: the Vikings' secret this season is that they aren't as unbelievably awful as they were in 2011. That's a back handed compliment, but they have managed to improve in the two areas (pass offense and pass defense) where they really needed it. Moving up from the bottom to almost average in those two areas has made them an average team this season (No. 16 overall) which is good enough to earn a playoff spot.