Mariners Acquire Jordan Westburg and Anthony Santander for Bryce Miller and Gabe Speier
In this deal, the Mariners get an infielder who can rotate between 3rd base and 2nd base and could potentially play some shortstop in a pinch. He gives you the depth to move guys around, give some guys days off, play matchups, and gives you a long-term option at third base if Geno regresses again offensively, or you want to let Geno walk after this year.
Santander gives you a really solid switch-hitting bat to place in the middle of the lineup. He can play some corner outfield and could also play some first base if Ty France's struggles carry over. Coming off a .257/.325/.472 with a 119 wRC+ and a 2.6 fWAR, Santander probably slots into the 3-hole behind Julio and ahead of guys like Cal, Geno, and Ty France. He is a 1-year rental, so his value is limited, in a similar way Teoscar Hernandez's was last year when the Mariners acquired him.
Miller probably slots in as the Orioles #2 behind Bradish, assuming they don't resign Gibson. You have a lot of club control in Miller to pair with your young core of position players like Gunnar Henderson, Colton Cowser, Adley Rutschman and Heston Kjerstad. Speier was really good last year as a November waiver claim. With the injury to Bautista, he at least gives you another option with some control.