The Mariners can talk themselves into a promising 2027 Opening Day lineup, but that doesn’t make it the right one.
Seattle has real pieces in place. Julio Rodríguez, Cal Raleigh and Josh Naylor give the club a legitimate core, Cole Young took a clear step forward in 2026, and Colt Emerson, Lazaro Montes and Michael Arroyo supply the kind of young offensive upside the organization has been chasing for years. That much is easy to see.
What’s harder to ignore is the risk. As things stand, the Mariners would head into Opening Day with three players age 22 or younger covering shortstop and both corner-outfield spots.
That might feel exciting by 2028. For a team trying to put a miserable 76-win season behind it right away, it’s a lot to ask.
Donovan fits best at the top of the order. When he was healthy early in the 2026 season, Seattle finally had the look of a lineup with a true leadoff option. Third base still appears to be his cleanest defensive home, even if his versatility gives the front office some flexibility.
The middle of the order is built around Rodríguez, Naylor and Raleigh. All three are under long-term contracts, and all three need better seasons after Seattle’s offense collapsed in 2026. Raleigh and Naylor are expected to be back from their offseason surgeries by spring training.
Young and Canzone also have cases for everyday roles. Canzone’s power earned him a bigger place in the lineup, while Young did enough to make second base one of the steadier spots on the roster. Shortstop, though, remains a question.
That’s where Emerson comes in. The Mariners have already committed to him as their long-term shortstop, so he belongs in the conversation even after a rough rookie year.
A wrist issue played a part in derailing his season, and his surgery will cut into much of his offseason hitting work. Still, his .581 OPS and 83 strikeouts in 236 plate appearances can’t just be waved away.
The upside is obvious. Emerson is likely to become a star. The issue is whether 2027 should be the year he is asked to carry a big offensive load while he is still learning on the job.
Montes brings a different kind of intrigue. His power is the easiest tool to dream on, and he announced himself with a home run in his major-league debut.
Seattle did not bring him up in September just to send him back to Triple-A to start 2027. Even so, slotting him into right field is still a projection, not a promise.
He is only 21, his defense remains part of the evaluation, and big-league pitchers will stop giving him the same mistakes once they have more tape.
Arroyo’s route looks just as open. With Young settled at second base, left field is his clearest path to regular at-bats. He forced his way to the majors by producing throughout the minors, and his right-handed swing gives the lineup a needed balance because the group leans heavily to the left side.
That balance matters. If Canzone, Montes, Young and Emerson are all in the lineup behind three other left-handed or switch-hitting regulars, the whole group tilts hard. Arroyo helps, but expecting him to provide a Randy Arozarena-esque answer would put too much on a player with limited major-league experience.
Seattle’s biggest need is not necessarily a new defensive home. It is a proven bat.
The Mariners need an established right-handed hitter who can work in the middle of the order, whether that player ends up in a corner outfield spot, at DH or even at third base if Donovan moves. The position matters less than the offense.
That’s also why adding another right-handed bat makes sense beyond simple roster fit. It would give Seattle a buffer if Montes, Arroyo or Emerson stumble, instead of forcing the lineup to depend on every uncertain piece breaking the right way. It would also create competition, which no one should be able to avoid after last season.
So the safest bets look pretty clear: Donovan, Rodríguez, Naylor, Raleigh and Young. Canzone has a strong case for regular at-bats, though his defensive spot could change. Montes, Arroyo and Emerson are the wild cards - all three belong in the Mariners’ future, but whether all three should be in the Opening Day lineup is another matter entirely.
This is only version 1, and it shows where Seattle stands before its first major offseason move. There’s plenty to like. There just isn’t enough to trust yet.
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