Agentic orchestration is the problem of getting more than one agent, and the people around them, to work on shared goals without tripping over each other.
The common approach is to build a bespoke workflow: a graph of agents with hand-written handoffs between them. It works until the work changes, and then somebody has to redraw the graph.
A role-based organisation already has the coordination layer. Work moves between roles, each role has an owner, and the boundary between them is written down as accountabilities and domains. An agent filling a role reads that boundary, works inside it, and hands over to the role that owns the rest. Whether the receiving role is filled by a person or another agent is not something the sender has to know.
The result is orchestration you do not have to maintain separately from the organisation. Changing who does what is a governance change, made in the open, and the agents follow it because they read it.