Coordination is the work of finding and involving the parties concerned, mediating between them, keeping them informed and planning so that disclosure can happen (3.3); vendors should coordinate with reporters, coordinators and other vendors so that the vulnerability, its fix and the advisory are handled consistently and released together. The CRA harmonized-standard draft cites this clause with 5.5.5 for bringing a coordinator in.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.