Assessing the Mariner's Core

When looking at the 2023 Mariners, one thing to remember is the relative youth up and down the roster. This team is the second youngest in the American League, and we see that exuberance and uneven performance all the time. We always knew this team would continue to endure growing pains because the roster's average age is a ripe 24 years. With so much youth in the clubhouse, what players should comprise the Mariners' core?