A study found AI systems achieved higher accuracy than law professors when answering legal questions, demonstrating measurable capability advancement in specialized professional domains. This quantifies competitive performance thresholds in knowledge work. When AI reaches parity with expert humans on standardized benchmarks, it signals viable substitution points for specific workflows—here, legal research, document review, and initial case analysis. The implication extends beyond cost reduction: it reshapes talent acquisition strategies and organizational structures built around human expert bottlenecks. For operators, this enables immediate workflow restructuring. Legal teams can redeploy junior associates from routine Q&A tasks toward judgment-heavy activities (negotiation, strategy, client relationship). For builders, it validates market demand for AI-native legal tools and suggests adjacent domains (accounting, technical documentation, policy analysis) where similar benchmarks may be approaching. The infrastructure shift favors organizations that integrate AI screening into their operations first—they gain efficiency gains before labor markets fully adjust.