Overview
Different models and harnesses are built for different jobs. Forcing one agent to perform every task can reduce quality and make the system less flexible. Model routing allows the chief of staff to delegate rather than attempt everything directly.
Separation also improves safety and organization. Personal data does not need to sit in a business-operations profile. A customer-service agent does not need trading credentials. A development agent does not need access to private messages.
A clear leader prevents the opposite problem: several agents working independently without a shared objective or owner.