MLB teams struggle to evaluate players with inconsistent performance arcs

MLB clubs are facing difficulty projecting long-term roster depth due to volatile performance trends among several key players. Athletics outfielder Lawrence Butler and teammate Zack Gelof have both displayed extreme production swings, alternating between periods of struggle and high-level play over recent seasons. Seattle Mariners catcher Cal Raleigh also experienced a difficult first half in 2026 before showing recent improvement in home run frequency. Rookie Henry Bolte has shown similar variability, recording monthly wRC+ figures ranging from 27 to 200 during his inaugural season. These inconsistent performance patterns complicate internal decisions regarding future contract extensions and starting roles for teams looking to contend. Management must now determine which versions of these players will remain consistent as they build their rosters for 2027.

• 4:17 PMYahoo Sports — Bi-Polar Performance Arcs Make Evaluation Difficult