NY Mets Devin Williams Signing Grade: Did New York Make the Right Move at Closer?

The New York Mets have signed Devin Williams to a three-year contract worth an estimated $45–50 million. The deal was reported on December 2 and signals a possible shift away from Edwin Diaz. The agreement places Williams in a primary closing role for the 2025 season.

The move is significant because Diaz was expected to command a deal approaching $100 million. Williams now becomes the likely closer. This decision raises questions about the Mets’ long-term bullpen plan and how the performance drop in 2024 may shape expectations.

How the Devin Williams Deal Fits the Mets’ Bullpen Plan

Devin Williams comes to the Mets after a mixed season. He saved 36 games for the Milwaukee Brewers in 2023. That was the only year he passed 20 saves. His 2024 season with the New York Yankees ended with a 4.79 ERA. Analysts noted his 2.68 FIP, which suggested he pitched better than the ERA indicates, according to reporting from Associated Press.

Williams posted one of his better walk rates at 3.5 BB/9. He also recorded his lowest strikeout rate at 13.1 K/9. His arsenal remains elite, and his changeup is still one of the most effective pitches in baseball. His profile continues to appeal to front offices that rely heavily on advanced metrics.

David Stearns’ familiarity with Williams from their Milwaukee days helped push this signing forward. With Diaz seeking a five-year contract near top-market value, the Mets chose a more cost-efficient option. Williams’ contract still pays him like a closer. His arrival hints that the Mets may be shifting away from high-cost bullpen contracts.

Williams will enter a clubhouse with fans who remember his postseason struggles. His walk-off home run allowed during last year’s playoffs remains fresh. The Mets expect the version of Williams who dominated in Milwaukee. They will work to ensure his Bronx inconsistency does not carry over into 2025.

What This Signing Means for Edwin Diaz and the Mets’ Strategy

The grading of this transaction depends heavily on whether Diaz returns. If the Williams signing ends Diaz’s tenure, the move grades as a B-minus. Diaz remains the more proven closer. Losing him would reduce the bullpen’s overall upside.

However, if the Mets still add Diaz or another high-leverage arm, the grade could improve. Williams would slot into an elite setup or complementary role. The team could then reshape the bullpen into one of the strongest groups in the National League.

The Mets are also trying to reposition their roster after the Brandon Nimmo trade. This signing may influence additional moves. A better middle reliever or another late-inning option would give this signing more value. The front office has made it clear that St. Lucie will be the place for Williams to reset his form and return to his Milwaukee peak.

The Mets made a calculated bet. They secured a proven high-leverage reliever at a lower price than Diaz. Now the evaluation depends on their next move and whether the bullpen gains strength or loses its anchor.

FYI (keeping you in the loop)-

Q1: What is the NY Mets Devin Williams Signing Grade?

The signing earns a B-minus if Edwin Diaz leaves. The grade could rise if the Mets add more bullpen depth.

Q2: Does Devin Williams replace Edwin Diaz?

He is expected to take over closing duties. Diaz could still return, but this deal makes it less likely.

Q3: Why did the Mets choose Williams?

He is familiar to David Stearns. His analytics remain strong. His contract is less expensive than Diaz’s expected deal.

Q4: Did Williams struggle last season?

Yes. He posted a 4.79 ERA with the Yankees. His advanced metrics showed better underlying performance.

Q5: Could the Mets still add another reliever?

Yes. The front office may pursue more bullpen help. This would improve the overall grade of the signing.