Strength of schedule is calculated from the opponents projected fantasy points allowed for the DB 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.
Verner's IDP value is nearly impossible to peg right now. On one hand, Verner has topped 80 tackles in two of three seasons. On the other, he's considered a poor fit for the Titans' new press-man coverage scheme, and after lining up a little at safety in minicamp My Fantasy League switched his positional eligibility, effectively destroying his IDP value. Until we know if Verner is starting, and if so where Verner is starting, spending a draft pick on the 24-year-old would be crapshoot city.