The Defense value you see in the Fangraphs dashboard isn't adjusted for position, so you could use that to compare the relative contributions of Schwarber to say, Baez, if you really wanted to. UZR is going to be a bit more practical for most purposes, and it's further down the page: https://www.fangraphs.com/statss.aspx?playerid=16478&position=OF#fieldingadvanced Also I misspoke, it's +8.3 career, got the 8.8 from 2017 lodged in my brain. So what is BR doing with theirs? The whole not adjusted for position thing seems really dumb. It's really to better compare players across positions. There's not a great way to do so otherwise. If you wanted to know who the best LFs were, you could still sort on position. Of 33 players with at least 200 innings in left field, Eloy is 31st in defensive fWAR. Just as the scouting reports said that Eloy would hit a ton, they said that he'd be awful in the field. If we're to believe in his bat, we have to believe in the shittiness of his fielding.