AICOSAF is based on seven central pillars: Brain (AI interpretation and insights), Memory (business context and history), Data (integration with business systems), Orchestration (automation of workflows), Workflow (executive routines), Governance (security and oversight), and Output (decision-making support). The Chief of Staff has an active role in each pillar: In Brain, CoS reviews and contextualizes AI-generated insights. In Memory, CoS is responsible for ensuring the knowledge base is accurate and up-to-date. In Data, CoS ensures that the integration with business systems is complete and the data quality is high. In Orchestration, CoS defines which processes should be automated and which require human intervention. In Workflow, CoS defines and monitors the execution of workflows. In Governance, CoS implements and monitors security and privacy policies. In Output, CoS validates and communicates decision-making support to management. By actively participating in each pillar, CoS can maximize the AICOSAF value and ensure that AI support is relevant, safe, and effective.