PFF analysts Steve Palazzolo and Sam Monson give their picks for who should win the Defensive Player of the Year award this season. Two young Cowboys made a strong push in 2021 in versatile LB Micah Parsons and ballhawk CB Trevon Diggs, but the decision really boils down to the same as last year: EDGE TJ Watt vs. DI Aaron Donald. Who do Steve and Sam think has earned it the most?