Phillies' Rob Thomson Pitches Strange Kyle Schwarber Decision

Thomson's strange pitch came after the Phillies took Castellanos out of the game late against the Blue Jays, sparking minor concern over his availability. Though fortunately, there isn't any long term issues.

But, it has seemingly led Thomson to decide to try Schwarber back in the outfield, and putting Castellanos at designated hitter, to allow Castellanos to get more rest while still being in the lineup every day.

Having both batters in the lineup is a good thing for the Phillies, but the consequence of getting Castellanos time off from outfield duties is putting Schwarber in the outfield. Considering his statistics in the outfield, it's a slightly concerning proposition.

According to Baseball Savant , back in 2023, the last time Schwarber qualified as a fielder, he was ranked in the first percentile of all defensive outfielders in Fielding Run Value. Schwarber had a negative 20 Fielding Run Value, ahead of only Keibert Ruiz for the worst fielder in baseball in 2023.

His 2022 outfield production wasn't any better, as he had an overall negative 19 Fielding Run Value, second worst in baseball. While Castellanos hasn't been a great fielder, he's been better than Scwharber whenever Schwarber is out there.

This potential move from Thomson is a strange choice, but it's purpose is clear: keep Castellanos and Schwarber in the lineup, while giving Castellanos time off from playing the field.

Ironically, in 2025, Castellanos has been the worst defender according to Fielding Run Value. Sitting at negative nine through 69 games, Castellanos has been the worst fielder in baseball.

With that perspective in mind, Thomson's decision makes some sense. But, while Castellanos hasn't been good in the outfield, Schwarber won't be any better. Either would be a hole in the outfield, but at least with Castellanos, he's had significantly more experience there.