Reason #2: The Middle Infield with JP Crawford and Josh Rojas
JP Crawford debuted back in 2017 at the age of 22, and he had lofty expectations. He was a top 5 prospect in all of baseball at one point, and was supposed to be the next big thing at shortstop. It took him a while, but JP is having one of the best seasons at shortstop in baseball this year. He sits 21st in all of baseball right now in bWAR, and is the 5th-ranked shortstop as of September 5th.
This isn't due to a lack of talent at the position, either. Through 120 games, Crawford is hitting an impressive .270/.388/.432. Those are easily career highs in OBP and SLG, and just a few points behind his BA career high. He has the 6th most walks in baseball, and is doing a great job at setting the table for the Mariners. He's also dangerous with the bat, going deep 14 times already, easily surpassing his previous career high of 9 from 2021.
With an OPS+ of 130, it makes sense to look to JP as a reason for success. His infield mate has been a big help as well since coming over from Arizona, and needs to be highlighted at the same time. Josh Rojas is hitting .267/.313/.413 while mixing in a handful of steals and homers. Although it's nothing insane, the fact that we are getting good production at second is a massive help, compared to what Kolton Wong was doing there to start the season.