Most sourcing projects don’t fail because suppliers are weak—they fail because the business isn’t aligned. A practical, psychology-aware playbook for category managers to map players, run intake properly, and co-create decisions without losing control of the process.

Tier 1 suppliers rarely cause the surprise. The real outages hide upstream—at Tier 2 and Tier 3—where single sites, single materials, and single-border crossings quietly support your entire supply base.

GenAI is most useful when it chews through mid-level sourcing work: summarising MSAs, pulling SLA penalties, and comparing proposals. Here are three copy‑paste prompt structures plus guardrails to keep you out of legal and data trouble.