18. 2017 Tennessee Titans
Regular season: 9-7 | Playoffs: 1-1
Mike Mularkey, who coached the Titans from 2015 through 2017, was most notable for wanting to bring an “exotic smashmouth” offense with him. As Tennessee never ranked better than 14th in points, and fell from fourth to 14th in rushing offense in 2017, it didn’t really work out. Mularkey also had to deal with the regression of quarterback Marcus Mariota, who went from a 26/9 touchdown-to-interception ratio in 2016 to 13/15 in 2017. Mariota is a problem the Titans never quite figured out, and they also never quite figured out the Patriots, who beat them 35-14 in the divisional round after Tennessee surprised the Chiefs in the wild-card game.