Pat Surtain II or Trent McDuffie: Best coverage defender in the NFL this season?

Gordon McGuinness and John Kosko break down the PFF debate between Pat Surtain II and Trent McDuffie to see who should be PFF's Coverage Player of the Year using some of PFF's advanced metrics. There's also another name thrown out at a different position, with Kyle Hamilton of the Baltimore Ravens having a tremendous season.