Those involved in procurement, including internal stakeholders such as budget holders, should understand why sustainable procurement is implemented and how to play their part, helped by a culture that supports it, by performance management, and by education, training and support; the organization should develop a culture embracing change, collaboration, innovation and appropriate risk taking, encourage networking, identify learning needs, and make professional sustainability advice available because procurement staff are not meant to be experts in sustainability.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.