Strength of schedule is calculated from the opponents projected fantasy points allowed for the RB 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.
While James looked like he was on his way out of San Francisco, the season-ending injury to Kendall Hunter may have just guaranteed a roster spot for James. Too bad he'll miss most of training camp with a dislocated elbow. Keep an eye on Jewel Hampton.