The strongest human + AI operating model is not defined by the amount of automation deployed.
AI should handle repetitive, immediate, structured and rules-based operational work where the business can govern the allowed actions.
People should handle judgement, relationships, persuasion, sensitive situations, strategic decisions, approvals and exceptions.
Between them should sit a connected operating layer that tracks state, permissions, ownership, actions, escalation and measurement.
That is a more useful frame than human versus AI. The team handles people. The system handles everything else.