Strength of schedule is calculated from the opponents projected fantasy points allowed for the LB 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.
It wasn't that long ago that Jon Beason was an IDP LB1 who appeared to have a very bright future, but injuries have wiped out the past two seasons, and Beason has now lost his starting job at MLB to Luke Kuechly in Carolina. However, Beason's rehab is ahead of schedule, and he appears slated for an every-down role at WLB if healthy. Durability is a concern, but if Beason can stay on the field he'll almost certainly outperform his draft slot this year.