Seattle Mariners Top 10 Prospects for 2023 Fantasy Baseball

Few teams are as adept at navigating the social media markets of our modern age. Invisible threads connect everything in the baseball world, and while it’s possible the Mariners would be able to trade Noelvi Marte and Edwin Arroyo for a big prize without the power of their brand, it certainly helps that nobody’s better at hyping their own than Seattle. The Yankees are great, too, and some of the fan bases do a lot of lifting for their organizations, but whenever Seattle isn’t posting a workout video or highlight reel, they’re handing their social media feeds over to their prospects to flash their personalities and connect to the fans. For years, the Yankees were able to spin their internal prospect praise to public-facing outlets and then flip almost all of these youngsters for big league pieces.  When Seattle traded for Luis Castillo last year, the narrative was focused on how big a haul the Reds received. Some of that is just the moneyball-ization of the modern baseball fan, but a large portion is down to the power of marketing. No offense to Marte, a power hitter who slugged .462 in High-A, or Arroyo, a shortstop who hit .227 with a 28.4 percent strikeout in Low A, but the idea that these two plus reliever Andrew Moore and pitcher Levi Stoudt represent a huge haul in exchange for an ace-level starter is absurd to me. Castillo posted a 2.99 ERA and 1.08 WHIP across 150.1 innings last year and then signed a team-comfortable contract at $108 million through 2027 with a 180-inning vesting option for 2028. This will cover his age 31, 32, 33, 34, and age 35 seasons. If he’s healthy and good enough to throw 180 innings at 35, he’ll be a bargain at $20 million as a 36-year-old. Or he’ll be off the payoff before the tough seasons start. I guess it’s not fair to compare the under-contract Castillo to the trade return he brought as a soon-to-be free agent, but I have to think everyone who said the Reds did great in this trade would feel a little differently if he’d been traded with five-plus seasons of affordable team control. Feels to me like a master-class from Jerry Dipoto, sending far-away prospects to pull a great pitcher out of a numbers-inflating environment and then signing him to a long-term contract before his statistics better reflected his pitching-friendly new home.