The Boston Red Sox made headlines over the weekend by parting ways with manager Alex Cora, but the front office didn't stop there. In a sweeping shakeup, the team also dismissed several other members of the coaching staff, including hitting coach Peter Fatse. While Cora's departure grabbed the spotlight, the real story behind the scenes might be more surprising—and it involves a struggling young infielder.

According to multiple insiders, including a report from The Athletic, there was a growing disconnect between Fatse and Red Sox chief baseball officer Craig Breslow. The tension reportedly centered on the development of 23-year-old infielder Kristian Campbell, a top prospect who was expected to be a cornerstone of Boston's future. Instead, his major league struggles became a flashpoint.

Campbell, who was 22 at the time, entered the 2025 season as one of baseball's most highly touted prospects. After just a year and a half in the minors—and only 19 games at Triple-A—the Red Sox named him their Opening Day second baseman. They doubled down by signing him to an eight-year, $60 million extension shortly after. But the jump to the big leagues proved rocky. Campbell struggled in spring training, and though internal metrics projected him to be one of the team's best hitters, the results on the field told a different story.

One key issue: Campbell failed to pull the ball, a weakness that had been discussed internally. By mid-June, his OPS had dropped to .664, and the Red Sox optioned him back to the minors. He hasn't returned to the big leagues since.

According to The Athletic's report, there was a "sense within the clubhouse that Breslow blamed Fatse for Campbell’s inability to live up to the projections." The frustration wasn't just about one player, though. Boston's offense as a whole has underperformed this season, ranking in the bottom third of the league. While Campbell's struggles may have been a catalyst, the decision to part ways with Fatse was part of a larger effort to reset the team's approach at the plate.

For Red Sox fans, the message is clear: the front office is serious about building a winning culture, and no one—from the manager to the hitting coach—is safe when the results don't match the investment. As for Campbell, the team clearly still believes in his potential. The question now is whether a fresh coaching voice can help him—and the rest of the lineup—find their swing.