The sourcing strategy, short or long according to complexity, should include key findings on risks, needs and the market, the actions to manage key risks, the approach to demand (eliminate, reduce, reuse, recycle), how the chosen sourcing route meets the objectives, how requirements enter the specification including go or no-go criteria with full and fair opportunity preserved, how sustainability enters the draft contract, the weight of sustainability in evaluation balanced against price and quality, the expected benefits including life cycle savings, and the impact on plan and budget; the sourcing approach should take account of how items will be disposed of; decisions should be agreed by key stakeholders, documented and often gated by senior sign-off.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.