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.
Whoever decided that 4-3 strong side linebackers weren't supposed to be good IDP options forgot to tell Chad Greenway. The 30-year-old has now logged more than 140 tackles in three straight seasons, and his 148 stops in 2012 tied Navorro Bowman for second in the NFL. Greenway has two straight IDP LB1 finishes in 12-team fantasy leagues under his belt, and given the unsettled linebacker situation around him in Minnesota there's no reason to think he won't make it three in a row in 2013.