Strength of schedule is calculated from the opponents projected fantasy points allowed for the DEF position. The best rating is +16 which gives the player the advantage against the defense and indicates an easy opponent, the worst rating is -16 which gives the defense the advantage and indicates a tough opponent.
The Titans need Linebacker Colin McCarthy to step up in a big way. Like the Steelers, the Titans are not the defense that they were four or five years ago. The pass rush has devolved and the linebacking play has been up and down. Firmly entrenched in the matchup/plug-n-play tier for a reason.