SEATTLE — As he boarded the team bus about to depart Oakland Coliseum, Scott Servais sat down and typed up a text message to the one person he believed deserved a special nod for the sudden rise of the Mariners’ newest pitching sensation.

“Just an unbelievable job,” the manager wrote as part of his message to Max Weiner.

The message arrived late on May 2, shortly after 24-year-old Bryce Miller wrapped up his major league debut in near-flawless fashion in a victory over the Athletics.

Weiner, the Mariners’ 28-year-old pitching coordinator, was in Oakland that evening, taking in Miller’s start sitting in the stands behind home plate. Giddy is the word he used to describe the feeling surrounding Miller’s debut.

“Like, little-kid excited,” Weiner said. “But I also felt very at peace watching Bryce, because I knew he was going to be Bryce. I was excited for the world to get to see who he is.”

Miller, a fourth-round draft pick in 2021, tore through the minors in just 22 months, blowing away all reasonable expectations in his first few weeks in the big leagues and becoming the latest young arm to establish himself in the Mariners’ rotation.

Want to know how the Mariners have churned out so much high-end pitching lately? How Miller went from a pitcher with a Double-A ERA of 6.41 in April to a bona fide major league starter in May?

Weiner’s presence offers a glimpse.

Hiring Weiner in December 2018 signaled a cultural change in the club’s pitching priorities. Less than five years later, the Mariners have, by a number of measurements, the best pitching staff in the major leagues, with three young starters — Logan Gilbert, George Kirby and, now, Miller — who the organization can hold up as prized examples of their draft-and-develop system.

The string of promotions of elite young arms is unprecedented in franchise history.

“We’ve been spoiled,” Servais said. “We’ve been spoiled with Logan. We’ve been spoiled with George … and I hope we continue to get spoiled.”

Making a connection

The three young right-handers each have their own style.

Gilbert, a first-round pick in 2018, approaches pitching the way an archaeologist might take on a treasure hunt, mining every available resource for even the smallest nugget of information that could offer a clue in his never-ending quest to improve. He’s curious and intentional with every pitch and every movement he makes.

Kirby, a first-round pick in 2019, is as confident as any young pitcher you’ll find. He has great stuff, he knows he has great stuff, and he doesn’t need a deep dive into Statcast data to confirm that.

Miller has a mixture of both. Much like Kirby, he’s uber-aggressive with a dominant fastball. And like Gilbert, he’s invested in the data and analytics of pitch shapes and movements. He’s eager to learn, with his own laid-back, self-assured manner.

Or as Mariners pitching coach Pete Woodworth artfully framed Miller’s makeup: “He has that perfect balance of aggressive (expletive) you and ‘I-don’t-give-a (expletive).’ Like, ‘I really don’t give a (crap) what happens, I’m just going to beat the (crap) out of you.’ He has that, and that is difficult to teach.”

And that’s where Weiner comes in.

Weiner serves as a bridge in the Mariners’ player-development program. He works with every aspect of the organization — from Jerry Dipoto and Justin Hollander in the front office, to the scouts who identify pitchers with potential, to the analytics department that identifies interesting pitch qualities, to pitching coaches at various affiliates, to Woodworth and Trent Blank on the major league staff — and pulls all the information together and tries to distill it down into something digestible for each pitcher.

Weiner’s gift is his ability to connect the dots, to bond with pitchers on a personal level, build a plan, build trust and build belief in that individual.

“He really understands his pitchers from a personality standpoint and from a competitive standpoint,” said Mark Lummus, a Mariners scout since 1999. “He’s so good at creating relationships with these pitchers, and they’re able to be the best version of themselves because of the time and investment he puts in.”

A little-used pitcher at Florida International University, Weiner spent much of his time in college learning everything he could about the art and science of pitching. He absorbed books on coaching, obsessed over pitchers’ biomechanics and asked endless questions of coaches and teammates.

That inspired him to start the Arm Farm, his program to develop young pitchers. That caught the attention of the Cleveland Guardians, who hired him to be their minor league pitching coordinator in 2017. A year later, the Mariners lured him away.

“When Max came in,” Woodworth said, “it was a big shift.”

Fearless is a word Weiner often uses to describe the mindset he wants Mariners pitchers to embody.

“We see a Mariners pitcher as someone who views themselves as a competitor before a pitcher, meaning this person is self-confident more than they are skill confident,” Weiner said. “They don’t care what’s coming out of their hand that day, they believe in themselves enough that they can still get the job done with whatever they have. And that value system only comes from really intentional practice and the monotony of really difficult practice.”