Why the St. Louis Cardinals Need to Sign Michael Kopech and Danny Coulombe (2026)

As the baseball world gears up for another thrilling season, one question looms large for the St. Louis Cardinals: Are they truly ready to compete without bolstering their bullpen? Spring Training is in full swing, but there’s a compelling case to be made that the Cardinals should seize this moment to add one more key piece to their roster. And here’s where it gets intriguing: despite Opening Day being just around the corner, there’s still untapped talent waiting to be snatched up.

But here’s where it gets controversial: While some argue the Cardinals have done enough, others believe they’re missing a golden opportunity to strengthen their relief corps. With the reliever market still brimming with potential, St. Louis could snag a seasoned arm on a minor league deal or a budget-friendly, one-year contract. Think about it—why not add a proven veteran who could make a difference in those high-pressure moments?

The Cardinals have already shown they’re not afraid to take risks, as evidenced by their signing of right-hander Ryne Stanek. Sure, Stanek struggled in 2025 with a 5.30 ERA over 56 innings for the New York Mets, but let’s not forget his career 3.85 ERA across nine major league seasons and 466 appearances. That’s the kind of experience that can stabilize a bullpen.

And this is the part most people miss: The Cardinals could still land a high-impact reliever without breaking the bank. Two names stand out as perfect fits: 29-year-old fireballer Michael Kopech and 36-year-old lefty specialist Danny Coulombe. Kopech, with his blistering fastball, posted a 2.45 ERA in 14 appearances for the Los Angeles Dodgers in 2025, ranking in the 92nd percentile for fastball velocity. His upside is undeniable—but is he worth the gamble? Meanwhile, Coulombe has been a model of consistency, delivering a 2.30 ERA across 55 outings in 2025 and a 2.12 ERA in 2024. His career 3.35 ERA in 343 appearances speaks for itself.

Adding either Kopech or Coulombe wouldn’t just improve the bullpen in the short term; it would also position the Cardinals as a contender in the trade market come summer. Plus, after shedding payroll by trading stars like Nolan Arenado, Willson Contreras, Sonny Gray, and Brendan Donovan, allocating a bit more cash to a reliever seems like a no-brainer.

But here’s the million-dollar question: Are the Cardinals willing to take this final leap, or will they stand pat and hope their current roster is enough? Let’s spark some debate—do you think St. Louis should go all-in on Kopech or Coulombe, or is their bullpen already set for success? Sound off in the comments and let’s hear your take!

Why the St. Louis Cardinals Need to Sign Michael Kopech and Danny Coulombe (2026)

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