Boston Celtics coach Joe Mazzulla is using artificial intelligence to scrutinize his own practice plans, asking whether the time spent on drills matches the team’s stated priorities. In remarks on 98.5 The Sports Hub reported October 29, Mazzulla described giving AI previous schedules and asking whether they had been efficient. The approach turns a familiar coaching problem—knowing what needs improvement—into a question of how preparation time is actually allocated.

Mazzulla’s example was offensive rebounding. If the Celtics identify it as a priority but devote only 5% of practice to it, the schedule may not reflect the emphasis the coaching staff intends. The point is not that a chatbot knows more basketball than a championship coach; it is that an outside analysis can reveal inconsistencies that are easy to overlook during a long season. Hoops Wire reported his comments, citing a transcript from Bobby Manning of CLNS Media.

Dunk Central’s October 29 report on Mazzulla’s use of AI circulated the coach’s remarks on X.

AI as a second opinion on preparation

The coach also questioned whether halftime film review spends too much time looking backward. Clips of mistakes from the first half may be useful, but they do not necessarily prepare players for the adjustments an opponent might make next. Mazzulla’s question is whether coaches should spend more time anticipating the next set of plays instead of merely replaying the last.

That distinction helps explain where AI-assisted analysis can fit into basketball operations. A language model can compare written objectives with a practice schedule, summarize themes from prior plans and suggest questions for the staff. It cannot independently establish that a proposed drill will win games, and coaches still need to validate its conclusions against film, player health and on-court results.

CLNS Media’s 2025 practice interview with Mazzulla provides additional context on how he evaluates Celtics training. This is not footage of the October 2026 AI remarks.

The NBA’s October 17 practice footage offers a look at the environment Mazzulla is trying to improve. His work also reflects a broader interest in training methods: he has spoken about maintaining his own demanding workouts to understand the fatigue and pressure players experience over an NBA season.

Social-media accounts have identified Anthropic’s Claude as the system Mazzulla uses, but the available transcript of his radio remarks does not establish the product name. The distinction matters: his confirmed description concerns how he evaluates practice plans, not a verified partnership between the Celtics and any particular AI company.

Mazzulla led Boston to the 2024 NBA championship. His latest experiment suggests that even a successful coach sees value in questioning established routines. Whether the AI-assisted reviews produce measurable improvements in rebounding, game preparation or decision-making remains to be seen.

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