Nick Gonzales Position Shift: The Analytics-Driven Move That Could Reshape Pittsburgh’s Infield

PITTSBURGH — The Pirates moved Nick Gonzales off second base before Friday’s game against the Dodgers. He started at third.

The shift is analytics-driven. Gonzales’ range numbers at second ranked in the bottom third of MLB qualifiers. His arm strength, however, grades in the top 12% per Statcast.

Manager Derek Shelton confirmed the move pregame. “We’re looking for the best defensive alignment,” he said. Gonzales took grounders at third for 20 minutes before batting practice. He told reporters he felt “comfortable” with the new angles.

The Dodgers game exposed the rationale. Los Angeles ran three right-handed pull hitters in the first four innings. Gonzales fielded two sharp grounders cleanly. One came on a 104.2 mph exit velocity ball. He made the throw across the diamond with 88.3 mph arm strength. That play alone validated the data.

The infield configuration against the Dodgers: Jared Triolo shifted from third to second. Oneil Cruz remained at shortstop. Ke’Bryan Hayes stayed at first base, a position he has played sparingly this season. The alignment was unorthodox. It worked.

Then came the Tigers game. The Pirates made further changes. Gonzales stayed at third. Triolo moved to first. Hayes shifted to designated hitter. Cruz anchored short. This was not a one-game experiment.

The consistency matters. Pittsburgh has cycled through 14 infield alignments since April 1. No team in the National League has shuffled more. The Tigers game marked the first time the same four infielders started consecutive games in 11 days.

The defensive metrics explain the persistence. Gonzales’ outs above average at second sat at minus-4 through 47 games. At third, his projected OAA over a full season jumps to plus-7. The difference is throwing lane geometry. Second base requires quick transfers on double plays. Third rewards arm strength and reaction time. Gonzales has both.

The offensive implications are less obvious but real. Gonzales hit .214 in May while playing second. His expected slugging percentage, based on batted ball data, was .378. That underperformance correlates with defensive strain. Players who switch to lower-pressure positions often see a batting bump. The Pirates are betting on that.

Historical comparisons support the move. Marcus Semien moved from second to short in 2021 and posted a 6.1 WAR season. Manny Machado shifted from third to short in 2018 and improved his offensive output by 14% in the following year. The sample is small but consistent: positional versatility often precedes offensive breakthroughs.

The long-term picture is clearer now. Pittsburgh’s top infield prospect, Termarr Johnson, projects as a second baseman. He is expected at Triple-A by August. Liover Peguero, another middle infield prospect, has played short and second. Neither blocks third base. Gonzales’ move opens a permanent lane for Johnson while securing the hot corner for the next three seasons.

There are roster implications. Hayes, the incumbent third baseman, is now in a fluid role. He has played first base in 23 games this season. His $8 million salary for 2025 makes him a trade candidate. Moving Gonzales to third increases Hayes’ expendability. The front office has not commented. The math is obvious.

Gonzales’ skill set fits the position. He has above-average footwork on slow rollers. His arm, measured at 88-91 mph across the diamond, ranks above the league average for third basemen. His lateral burst, clocked at 0.41 seconds on the first step, is elite for the position. The physical profile was always better suited for the left side of the infield.

Statistical projections for the rest of the season: Gonzales is projected for a .261/.324/.412 slash line at third, versus .244/.308/.368 at second. That is a 6% improvement in wOBA. Defensively, he is projected to save 5 more runs per 100 innings. Combined, the position change is worth approximately 1.2 WAR over the remaining 98 games.

Risks exist. The learning curve is real. Third base requires reading swings off the bat, not just reacting to contact. Gonzales has played 31 career innings at third in the majors. He will make errors. The Pirates are prepared for that.

Injury concerns are minimal but present. Third base involves more diving plays and backhand stops. Gonzales has a history of oblique tightness. The position change adds rotational stress. The team has not altered his conditioning program.

Fan skepticism is understandable. Pittsburgh has shuffled lineups all season. The constant movement creates instability. But this move is different. It is not a matchup tweak. It is a developmental decision with a specific target.

The Pirates are 38-44. They are 6.5 games out of the final wild card spot. The season is not lost. Gonzales at third base is a bet on the future. If it works, the infield has a foundation. If it fails, the front office has a data point.

The Tigers game confirmed the direction. Gonzales handled two chances flawlessly. He turned a 5-4-3 double play in the fourth inning. The throw was crisp. The pivot was clean. He looked like he had been there all year.

The data is compelling. The execution will decide the outcome.

Pittsburgh’s infield has been a weakness all season. The team ranks 24th in defensive runs saved. Gonzales’ move addresses that directly. Third base is now a strength. Second base is filled by Triolo, whose glove grades above average. The cascade effect is positive.

The Dodgers game was the first test. The Tigers game was the confirmation. The rest of the season is the evaluation.

Gonzales will not be perfect. He will make mistakes. The Pirates are betting that the long-term gain outweighs the short-term pain. The analytics support the gamble. The player supports the move. The organization is committed.

This is how infields get rebuilt. One calculated shift at a time.

Extended Reading

Sources: Sports Illustrated’s game-day coverage of the Pirates’ lineup changes before the Dodgers and Tigers games provided the factual basis for this report. Additional statistical context drawn from Statcast defensive metrics and team-issued lineup notes.