Monday marks the one-year anniversary of Buster Posey's blockbuster trade for Rafael Devers. The ledger since: 69 wins, 93 losses, and a franchise still searching for solid ground.

When Posey acquired Devers on June 16, 2025, the Giants were tied for first in the NL West and the deal felt like a franchise-defining move. Twelve months later, that single transaction has metastasized into compounding organizational costs — a gutted bullpen, an expensive manager swap, delayed homegrown prospects, and a 2026 season that currently sits at 29-43, on pace for one of the worst finishes in recent franchise history.

The morning of the trade, the Giants were 41-29 — even with the Dodgers. Posey's first year as president of baseball operations looked like a quiet masterstroke. By July 1, they had lost 12 of 16 games and sat nine games out of first place. What began as a June swoon became a structural collapse that is still unfolding.

Baseball Reference shows the 2026 Giants at 29-43 through Sunday, 4th in the NL West, with a Pythagorean win-loss of 30-42 suggesting the numbers aren't lying. Add those to the 40-50 record the club compiled from the moment Devers arrived in San Francisco through the end of the 2025 season — when the Giants finished 81-81 — and the composite stands at 69-93 across 162 games in the Devers era.

A $10.5 million managerial experiment

The cascade of consequences is more than just a player underperforming. On July 1, 2025 — the very day the Giants lost their ninth game in 16 — Posey exercised manager Bob Melvin's $4 million option, hoping to stabilize a clubhouse that was slipping. As Posey later acknowledged to the SF Standard, "I think we all felt that the season was going in the direction that we didn't want it to go, and the hope was that picking up that option provided a morale boost within the clubhouse." It didn't; July was the Giants' worst month, and Melvin was ultimately let go after a 81-81 finish.

In his place: Tony Vitello, lured from the University of Tennessee in what SF Standard reporter John Shea calculated as a $10.5 million total managerial transition when factoring in Melvin's buyout, Vitello's first-year salary, and the cost to buy out his Tennessee contract. The rookie MLB manager is 29-43.

The bullpen that isn't there

The July 31 deadline sell-off compounded the damage. Relievers Tyler Rogers and Camilo Doval were shipped to New York. Then the Giants' best reliever, Randy Rodriguez — an All-Star in 2025 — underwent Tommy John surgery in August and won't return until 2027. The front office entered 2026 without adequately replacing that depth. The bullpen has been a primary driver of the current collapse, according to the SF Standard's reporting.

What's left to work with

Not everything is grim. Baseball Reference shows Oracle Park attendance at 1,270,504 through the first half of the season — fourth among the 15 NL teams — suggesting Bay Area fans haven't entirely walked away. Luis Arráez, the one free-agent signing that has paid off, carries a 2.0 WAR and is in contention for another batting title. Bryce Eldridge, the 20-year-old prospect whose development was slowed by the Devers signing — Devers occupied first base and the DH spot, limiting Eldridge's path to the lineup — is now showing the potential the Giants delayed.

Devers himself has hit .235 with 29 home runs and 84 RBIs across the full year since the trade, per the SF Standard, and carries a 0.1 WAR in 2026. The production of a solid lineup piece, not the cornerstone Posey bet on.

The Giants travel to Atlanta this week. The one-year mark arrives without much to celebrate, but with a clearer picture than the franchise had in the fog of June 2025: the Devers era has reshaped this team in ways that will take more than one offseason to undo.