I don’t think he’d be a disaster. Won’t be MVP caliber but IMO he is miles above what they have currently on the entire infield outside of when Raley plays 1B.Arenado in a Mariner uniform, at this stage in his career, would be yet another Dipoto Disaster. Mitch, Mitch, Randy, and Nolan - The Four Horsemen of The Mariner Apocalypse
Ya I would pass on Castillo for Kjerstad. Not enough. Now Kjerstad and Mullins I would do and that helps Orioles with some payroll.I think they’d be fine with Kjerstad but him for Castillo straight up is a flat out no from me. But to get Mayo it would take one of the other 4 IMO and most likely it’d have to be Miller or Woo. But I’d propose Gilbert/Kirby and either Montes or Farmelo for Mayo and Kjerstad or if it’s Mayo and Westburg offer both Montes/Farmelo and Williamson/Locklear or crap do both. The Orioles and Mariners match up perfectly for a trade with both MLB needs and prospect wise.
Cause with how the offseason has played out there are only the Cards, Rays and Orioles that line up for a trade that can significantly improve the projected opening day lineup.