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.
In just two years Aldon Smith has become one of the NFL's most feared pass rushers, racking up a staggering 33.5 sacks over that span. Not only that, but Smith has improved greatly against the run, with his tackle production improving markedly last year. Smith is still very much a "big play" linebacker, and as such prone to be streaky, but much like DeMarcus Ware as Smith continues to mature his value in tackle-heavy IDP leagues will only continue to trend up.