Muñoz Stays. Miller and Robles Go. Seattle Starts Sorting.

The Mariners exercised Andrés Muñoz's $9 million option Thursday and declined options on both Bryce Miller and Victor Robles. Three decisions, one direction: hold what works, move on from what didn't.

Muñoz is the easy call to defend. He's the unquestioned closer on this roster — the depth chart shows no one else in that role with anything close to his footprint — and keeping him off the free-agent market for $9 million is straightforward business. The harder conversation is Miller, who finished 4-10 with a 4.17 ERA across 22 starts. He was never healthy enough to settle in, and a rotation that already leaned heavily on Logan Gilbert and Bryan Woo couldn't afford a fifth starter who kept giving innings back. Declining his option doesn't close the door on him returning, but it resets the terms.

Robles is a quieter loss. He appeared in the outfield and at DH in spots throughout the year, and his departure thins a depth chart behind Randy Arozarena that was already short. That's a problem the front office will need to address — left field coverage behind their only All-Star is not a luxury concern heading into the offseason.

The rotation remains the bigger puzzle. Gilbert, Woo, George Kirby, and Emerson Hancock give Seattle a workable top four, but Luis Castillo's 5.24 ERA and the general fragility of the staff all season make clear that adding rotation depth isn't optional. These option decisions are just the first page of what figures to be a busy offseason.