Unlike other position players, the Mariners outfielders aren’t likely to play in one specific spot all year. While we can lock J.P. Crawford into shortstop, we can’t really do the same with somebody like Mallex Smith. Smith will likely play all 3 spots in 2020, so looking at these players in one position doesn’t make much sense.
So rather than try to project who will get the most starts in left field, we will just take the 5 current Mariners who are likely to get most of the playing time in any of the 3 outfield spots.