Courage is constrained by loyalties to the past; the leader refashions them (staying grounded in the present, holding the conversations that risk relationships, creating rituals to let go, keeping the core values while changing the loyalty), leans into the incompetence that new work exposes, learns to relish tough decisions, obtains permission to fail from those who authorize the work, and builds the stomach for a journey whose path is not straight.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.