By Matt Ehalt One season after going 12-5 and securing the AFC’s 1-seed, the Titans’ over/under at SI Sportsbook is just 9.5 wins. Life has come at the Titans fast. Tennessee had it all entering the playoffs last year—the No. 1 seed, Derrick Henry back from injury and A.J. Brown and Julio Jones ready on the outside. This is where we cue up the hysterical, “And nothing can go wrong! OH NO, IT ALL WENT WRONG” video. Ryan Tannehill threw three interceptions in the divisional round game versus the Bengals, the last of which led to Cincinnati’s game-winning field goal. The Titans lost at home despi…