Buster Posey hired former Giants backup catcher Curt Casali and internal analyst Pablo López to front-office roles, his first structural moves since taking the president chair in late September. Casali caught 127 games across three seasons in San Francisco (2021-2023) before the club non-tendered him last November. López spent two seasons in the analytics department, most recently running opposing-pitcher modeling for game planning.

Posey is building the operations layer beneath general manager Zack Minasian with people who already know the Oracle Park sight lines and the peculiarities of a roster that finished 80-82 in 2024 despite a $206 million Opening Day payroll. Casali's title is special assistant to baseball operations; López moves to coordinator of baseball systems. Neither role requires league approval. Both report to Minasian, who was promoted from vice president of pro scouting when Farhan Zaidi was dismissed on September 30.

Casali's move follows the template Houston used when they brought Joe Espada into the front office in 2018 before he became bench coach, then Astros managerial candidate, now Astros manager. The difference: Casali has no prior coaching experience and wasn't especially valued as a game-caller—his -0.4 WAR in 2023 came despite a .986 fielding percentage. What he does have is three years of sitting next to Logan Webb, watching how San Francisco's pitching infrastructure translated analytics into in-game adjustments. That knowledge is useful when you're trying to fix a rotation that posted a 4.16 ERA last season, tenth in the National League.

López's promotion signals Posey wants decision-making closer to the people who build the underlying models. San Francisco has historically run a centralized analytics group that funneled insights through senior advisors before reaching the GM. Giving López a coordinator title with direct system oversight suggests Posey is collapsing that chain. It also suggests he trusts the work López did on pitcher sequencing, which became more prominent after the team hired pitching coach Brian Kapler's replacement, Matt Daniels, in November 2023. Daniels leaned heavily on López's opposing-hitter tendencies work during his first season.

The hires matter because Posey is operating without a traditional president-of-baseball-ops buffer. Owner Greg Johnson gave him full operational authority, meaning Posey is both setting strategy and managing the people who execute it. Casali and López give him two voices who've already seen how the org's spring training schedules compress, how the analytics group fights with video coordinators over iPad access, how minor-league coordinators route information to Triple-A Sacramento. Institutional memory has value when you're 29 games behind the Dodgers and trying to close the gap without turning over the entire coaching staff.

The moves also clarify what Posey values. He didn't hire a former front-office executive from another club or bring in a big-name retired player. He promoted from within and elevated someone who caught 94 games for him as a Giants legend turned executive. It's a vote for continuity over disruption, which makes sense for a franchise that hasn't won a playoff game since 2016 but still draws 2.72 million fans annually and holds a local TV deal worth roughly $50 million per year through 2029.

Watch whether Casali gets a spring training coaching assignment, which would indicate Posey is testing him for a future Triple-A managing role. Watch whether López hires additional analysts before the February arbitration deadline, when roster construction pivots from free agency to internal projection. And watch whether Minasian brings in his own hire at the senior advisor level—he's been in the GM chair for 11 weeks without adding a former peer, which is unusual for someone promoted internally.