Not that long ago, the Titans' lead in the AFC South looked insurmountable. That is no longer the case as Tennessee is just two games up on Jacksonville with four to play. ... Mike Vrabel's team has lost three straight for the first time since 2018, and its eight-game home win streak against the Jaguars is gone, but things could be a lot worse. Computer models overwhelmingly predict the Titans will finish first for the third consecutive year. And even if the worst happens between now and Week 18, Tennessee will face a winner-take-all matchup at the end of the season. ... Say this about the Jaguars, though, even though it is unlikely they will unseat the Titans this season, it seems certain will be the leading threat to Tennessee's place at the top in the coming seasons. ... Another unlikely hero emerged for a Titans' opponent in the passing game as injuries to the secondary continue to create problems and limit the defense's ability match up with every weapon available to the other team. ... Where have the turnovers gone? A big part of the Titans' recent struggles can be traced to their inability to create takeaways. That certainly was an issue against Jacksonville. ... Not all of the news is bad. Derrick Henry looked much more like Derrick Henry in recent weeks, and the tight ends, particularly, rookie Chig Okonkwo look more and more like reliable and consistent options in the pass game.