Good SCCM can benefit every party: a clearer picture of the supply chain and of what disruption would do; supplier relationships managed so that disruption hurts less; faster, better response through working with suppliers; supply chain risks found and reduced; better planning, due diligence, assurance and day-to-day relations with suppliers; and an edge over competitors who lack it. It also opens opportunities: giving management the information to decide how many people and how much resource to commit to SCCM; joining up SCCM duties through the SCCM owner (4.4) so they work across the organization; learning what continuity capability suppliers have and what they expect of the organization; setting performance measures; and engaging to understand, and plan for, suppliers beyond Tier 1.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.