Defensive WAR is such a scam stat. Don Mattingly is listed as a below Replacement level fielder by that statistic.
According to that statistic, Jason Giambi fumbling the ball all over the infield has nearly the same value as Don Mattingly scooping 4 balls out of the dirt per game, starting double plays from the 1st base position and making it seem routine, and leading the league at his position in Range Factor and Fielding % for the better part of his career.
