ST. LOUIS — St. Louis baseball has just suffered a huge shock: John Mozeliak, President of Baseball Operations, officially announced his resignation after the 2025 season, clearing the way for Chaim Bloom to lead the team into a new chapter of innovation and restructuring.
Before their farewell game at Busch Stadium, the Cardinals held an on-field tribute to Mozeliak — his final game in St. Louis.
Mozeliak sent a “heartfelt message” to fans:
“There are a lot of mixed emotions. I know this is the right time, but the scary thing is how to move forward without a permanent role every day… I’m going to take at least three months off, and then see what I want to do next.”
He also stressed that his departure was a personal decision, not the result of outside pressure.
Mozeliak has been in the news for revealing the dark side of controversial moves during his tenure — particularly the firing of former manager Mike Shildt. He said that he and Shildt had “ideological differences,” one of the reasons why that decision remains controversial.
Many suspect that Mozeliak’s departure was the result of pressure from the team’s declining history and fan backlash after the Cardinals failed to make the playoffs in recent seasons.
Mozeliak has been in charge of baseball since 2007, and is associated with the Cardinals’ highest point — the 2011 World Series — and many other successful seasons.
Under his leadership, the organization has focused on building a team from the youth system, selecting internal talent, and maintaining a “quality Cardinals” culture.
However, times have changed: modern baseball requires data speed, in-depth analysis, and new thinking — pressures Mozeliak has admitted are difficult to fully adjust to.
Immediately after announcing his resignation, the Cardinals confirmed that Chaim Bloom, who has served as a team advisor, will succeed Mozeliak after the 2025 season.
The board signed Bloom to a five-year contract, with the expectation that he will lead a rebuilding phase, focusing on internal training and reforming the youth development system.
When Bloom takes over, there will be tough tests: how the winter transfer window plays out, how he plans to develop a young core, and whether he will continue to retain coach Oliver Marmol — who is expected to stay until at least 2026.
Fan trust: After several disappointing seasons, Bloom will have to prove he has the chops to rebuild the old “winning culture.”
Financial & transfer pressures: There are rumors the Cardinals will consider waiving a big contract like Nolan Arenado to gain more budget flexibility.
A seamless transition: Bloom will have to work closely with Mozeliak in his final year to ensure continuity, but also build his own influence.
A small revolution has begun in St. Louis — Mozeliak has finished a long journey, Bloom is preparing to step into a new stage. But the road ahead is not without thorns. Will the Cardinals bounce back under Bloom, or is this a painful transition before a revival? Stay tuned.
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