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.
Arguably still has the talent but seems to lack the motivation you're looking for in an every week starter for fantasy. Defenses normally focus on where Jamaal Charles is at all times, so a lot of the success Bowe has had this season is attributable to "off coverage" and less double teams than fantasy owners had grown accustomed to.
The addition of ex-Eagles coach Andy Reid and his West Coast Offense is just what the doctor ordered for Bowe and the Kansas City offense. The addition of former 49ers quarterback Alex Smith mercifully puts an end to the Matt Cassel era and has Bowe’s arrow pointing upward. At the point in your draft where you’re going to consider Bowe there is very little downside and big upside.