Dual Sourcing Keeping exactly two qualified suppliers for a critical item — enough competition for fair pricing, enough simplicity to manage well. Your supply chain's spare tire.
Coordination Cost The invisible work behind every supplier: RFQs, quality checks, delivery tracking, invoice reconciliation. It's like the restaurant bill's service charge — it grows with every extra guest at the table.
Non-Contractible Value Improvements a supplier voluntarily makes — innovation, quality upgrades, faster response — because they trust you'll share the gains. No contract can force this; only a strong relationship earns it.
Fragmentation When your spend is spread across too many suppliers so nobody gets enough volume to matter. Like having $100 split across 10 bank accounts — you're not important to any of them.
Supplier-Base Hygiene Regularly pruning duplicate suppliers and consolidating where it makes sense. Same idea as cleaning out your closet — keep what fits, remove what doesn't, stop buying duplicates.
Competitive Tension When suppliers stay sharp on pricing and service because they know you have real alternatives. Two competitors is tension; fourteen is noise.