2015 Rank: 11
2014 Rank: 25
Rise: 14 spots

Here, we have another case of an offense placing just outside the league’s top 10 units after a miserable 2014 season.

Using the relatively low cutoff point of 200 pass attempts, Teddy Bridgewater’s 30th-place finish among 37 qualifiers in Passing NEP per play looks rough -- he’s dead last among the 25 with 400 or more attempts. Stefon Diggs came on strong in his first four NFL games from Weeks 4-8, but his production fell off a cliff after that stretch. Still, he placed in the upper half of receivers (with 80-plus targets) in Reception NEP per target, indicating he is a legitimate option for Bridgewater in future years.

Adrian Peterson returned from his 2014 hiatus to lead the NFL in rushing yards, and finished 12th in Rushing NEP per play despite having 39 more carries than any other running back. You can tune in to whichever narratives you choose, but they all point to Peterson cementing himself once again as a top NFL running back. His presence on the field was likely the most influential factor in the Vikings’ improvement.