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.
Foster started 2012 strong, averaging nine tackles a game for the first four weeks of the season. However, as the season wore on Foster started leaving the field on passing downs, which severely hampered his fantasy upside. If Foster can work his way back into the nickel then he could easily outperform this ranking, but given that that's far from a sure thing, for now Foster is little more than an upside IDP LB4.