Role design
Define outcomes, recurring tasks, decision authority, spending limits, systems, access, escalation and measures. Avoid hiring a vague assistant to absorb an undefined operating system. Separate accountable owner from helpers. One person must know they own the final result.
Delegation ladder
Move from observe, perform with review, perform and report, to own within limits. Increase authority only after consistent evidence and understanding of exceptions. Provide training, SOP, examples, access and feedback. Delegation without resources is abandonment; delegation without controls is risk transfer.
Quality assurance
Use sampling, exception reports, guest and owner outcomes, defect recurrence, response time and compliance evidence. Review the system when several people make the same mistake. Keep sensitive access least-privileged and remove it promptly at role change or exit.