When presenting an enterprise-wide autonomous-agent rollout to the C-suite, which single KPI has proven the most compelling cycle-time reduction, cost-per-decision, or another metric entirely and why does it resonate at the board level?

"Customer regret moments" - the seconds between someone wanting something and realizing we don't have it. Our autonomous agents at Birmingham General Hospital learned that nurses crave chocolate digestives during night shifts but we kept stocking regular ones. The system auto-corrected within hours. Boards love this metric because it captures lost opportunity in real time, not just completed transactions. My advice: Track what people almost bought but didn't find - it reveals invisible demand that traditional metrics completely miss.