Yeah 15 starts isn't enough time to judge the type of arm SWR could be. Concerns are the low K/9 (7.42) so he's not going to be anything flashy. Also, seems like he's just a 5 to 6 inning pitcher and can't get pushed anymore than that. Solid ERA (3.48) and FIP (3.86) so far and a 1.2 fWAR. Likely settles in as a No. 4/5 starter who possibly could get lucky the odd season and pitch to slight higher expectations. View him just as a 2 WAR type of arm.
Berrios this season has only accumulated 0.3 fWAR with a 6.81 K/9 and a 5.07 xFIP. SWR has provided 4x more value so far this season. Moving forward given their ages and contract situations, would rather have SWR over Berrios. Obviously if we look at Berrios after the trade to the Jays in 2021 and in 2023, he looked like a very good and durable No. 2/3 starter and helped the Jays make Postseason runs in each of those seasons, whereas SWR wouldn't have. Right now, there are huge concerns with Berrios given his low K rate and high FIP. How long can his 3.76 ERA hide the fact on how bad he really has been this season? Gotta hope he bounces back in 2025 and returns to being a 3-4 WAR type of arm, especially with that contract he has.