The 5 Most Improved NFL Offenses From the 2015 Season

Tampa Bay Buccaneers

2015 Rank: 13
2014 Rank: 31
Rise: 18 spots

Unlike the previous two teams, the Buccaneers were not a top-10 offense in 2015. However, given their 31st-place finish in 2014, 13th was a marked improvement.

Jameis Winston had an up-and-down rookie season, but still finished 15th among quarterbacks in Passing NEP per play, despite injuries ravaging his receiving corps.

Among receivers with 80-plus targets, only Ted Ginn Jr. had a lower catch rate than Mike Evans’ 50%. Evans battled a severe case of the drops all year, and placed just 32nd in that group in Target NEP.

On the other side of the offensive line, Vincent Jackson played in only 10 games and caught more than four passes only once, and second-year tight end Austin Seferian-Jenkins mostly disappeared with an injury after catching two garbage-time scores in Week 1.

The real bright side for the Buccaneers offense was the running back position. While Doug Martin’s 15th-place standing in Rushing NEP per play among 44 backs with 100-plus carries is impressive, it's just the tip of the iceberg. Martin’s 37 rushes of at least 10 yards were second most in the league, behind only Adrian Peterson. Martin and Charles Sims also combined for 118 targets out of the backfield and proved to be versatile pieces.