RCA and systems safety models (e.g., Swiss Cheese) emphasize that adverse events typically require multiple contributing factors---small process breakdowns, latent conditions, and active failures---to align. This is why focusing only on the last person who touched the patient (''sharp end blame'') rarely prevents recurrence. Risk management objectives are to identify and strengthen defenses: policies, training, equipment design, staffing models, communication standards, and redundancy where needed. A series-of-events understanding enables targeted corrective actions (forcing functions, standardization, automation with safeguards, independent double checks for high-alert processes). It also supports just culture: accountability is preserved for reckless behavior, but most improvement comes from redesigning systems that make errors more likely. This approach improves reliability, reduces repeat harm, and provides defensible evidence of organizational learning and corrective action.