Strength of schedule is calculated from the opponents projected fantasy points allowed for the WR 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.
The Dolphins basically gave away Bess in the deal that him to the Browns. And the Browns couldn’t be happier as they received something that they haven’t had in years, a sure-handed receiver. Bess has caught 64% (321-of-500) of the passes thrown his way in his career. Brandon Weeden, meet your new best friend.