Additionally, Kramer reports that the M’s are hiring Bobby Magallanes as assistant hitting coach. The 55-year-old spent the last four seasons working under Seitzer as an assistant hitting coach with the Braves.

Seitzer brings two decades of hitting coach experience to Dan Wilson’s staff. He’d worked in that capacity with the Diamondbacks, Royals and Blue Jays before being hired by the Braves during the 2014-15 offseason. Seitzer spent 10 seasons as Atlanta’s hitting coach. The Braves have been contenders for most of that stretch.

The development of Ronald Acuña Jr., Austin Riley, Ozzie Albies and Michael Harris II into star players has obviously been an instrumental part of the Braves’ success. Seitzer was fortunate to work with a lot of talented hitters, but he certainly deserves some amount of credit for overseeing a lineup that trails only the Dodgers in scoring over the last five seasons.

Still, the 2024 campaign was a mixed bag. The Braves’ offense floundered for a few months after Acuña’s season-ending knee injury. They finished the year 15th in scoring with a .243/.309/.415 team batting line. They were in the top 10 in slugging but right in the middle in both batting average and on-base percentage. That was below expectation for a team with as much star power as the Braves possess. Atlanta fired Seitzer, Magallanes, and catching coach Sal Fasano shortly after being eliminated from the playoffs.

It’s the latest shakeup to Seattle’s hitting infrastructure. The Mariners have struggled for years to field even a league average offense, which would probably be sufficient to get to the postseason given the strength of their starting pitching. The M’s hired Brant Brown as offensive coordinator last offseason. They fired him two months into the season in an effort to spark the lineup. That didn’t work, and the M’s dismissed hitting coach Jarret DeHart along with skipper Scott Servais three months later. Assistant hitting coach Tommy Joseph left the team at the end of the season to take the same position with the Orioles.

Martinez joined the staff when his longtime teammate Wilson signed on as manager. He had previously been reluctant to assume a full-time coaching position because of family considerations. It seems they’ve settled on an unconventional role that’ll allow Martinez to remain actively involved without spending much time away from Seattle.

Atlanta undoubtedly had a disappointing year, including on offense. The club came into the season with championship aspirations but just barely snuck into the playoffs and then were quickly eliminated. The club’s hitters posted a collective line of .243/.309/.415, leading to a league-average wRC+ of 100. That was a big drop from last year when Atlanta collectively hit .276/.344/.501 for a league-leading 125 wRC+.

How much credit or blame the hitting coach deserves for such a swing is a matter of debate. Seitzer has been the club’s hitting coach since October of 2014 and overseen plenty of good clubs since then, as Atlanta has the playoffs in each of the last seven years and won the 2021 World Series. While the 2024 club didn’t meet expectations, injuries undoubtedly played a role there, with Ronald Acuña Jr., Austin Riley, Michael Harris II, Ozzie Albies, Sean Murphy and others missing significant time. Regardless, the club has decided that a change is necessary, so they will be looking for a new hitting coach for the first time in a decade.

Seitzer played in the majors from 1986 to 1997, suiting up for Kansas City, Milwaukee, Oakland and Cleveland. The Diamondbacks hired him as their hitting coach going into the 2007 season and he later had the same job with the Royals and Blue Jays before coming to Atlanta. Magallanes was a minor leaguer in the ’90s but never made it to the show. He became a minor league coach early in this century and was able to get up to the majors with Atlanta for the 2021 season.

Fasano played in the bigs from 1996 to 2008, playing for nine different teams. He quickly began coaching in the minors, getting hired by the Blue Jays in late 2009, around the same time Anthopoulos became the GM of that club. In late 2017, Anthopoulos became GM in Atlanta and Fasano was hired by the club as a catching instructor that same month.

Though the Braves surprised with a 90-win season and a National League East division title in 2018, the team’s pitching staff was an obvious question mark down the stretch and proved to play a significant factor in the team’s early exit from the postseason. Atlanta pitchers walked an MLB-worst 10.31 percent of the hitters they faced during the regular season, and the Braves’ staff issued 27 walks in a 3-1 series loss to the Dodgers in the NLDS.

Hernandez, 57, will unsurprisingly take the fall for the staff’s inability to locate the strike zone, even if the blame can’t be solely placed on his shoulders. He spent three seasons in the Braves organization, serving as a minor league pitching coordinator in 2016 before taking the reins as the Major League pitching coach in 2o17. A baseball lifer, Hernandez began his career as a coach 33 years ago in the White Sox’ minor league system and has served on Major League staffs with the Braves, Marlins, Indians, Tigers, Rays and Angels (where he was named pitching coach at the age of 31 in 1992).

Burns notes that GM Alex Anthopoulos indicated an openness to retaining Hernandez in a different capacity (Twitter link), though it’s not clear whether Hernandez himself wants to return in a new role. Given his vast experience, he’d certainly be a candidate to land a coaching job elsewhere even after being cut loose in Atlanta, and he may simply prefer the opportunity to embark on a new challenge in another organization.

The rest of the Atlanta staff includes bench coach Walt Weiss, hitting coach Kevin Seitzer, assistant hitting coach Jose Castro, first base coach Eric Young, third base coach Ron Washington, bullpen coach Marty Reed and catching coach Sal Fasano. The Braves will presumably go outside the organization to find a new pitching coach in the coming weeks.