Vendor Dependency

D03 - Vendor Contract Quality

Definition

A structural reliance on a vendor relationship that has progressed through the four-stage degradation model to the point where the contractual, operational, and financial switching cost is significant enough to constrain the company's ability to exit or renegotiate freely.

Vendor dependency isn't a moment. It is an accumulated condition.

It develops through four stages over years of small accommodations, each individually rational, collectively producing a relationship that the vendor has far more leverage over than the contracting company recognizes until a renewal or incident makes it visible.

Indicators

• A vendor relationship has been renewed without negotiation for two or more consecutive cycles.
• The thought of leaving a specific vendor feels more expensive than it probably actually is without a formal switching cost calculation.
• No dependency mapping exists for your vendor portfolio. No inventory of which relationships are at Stage 3 or 4 exists.

Quick Win

• Name your longest-running vendor relationship.
• Ask which of the four stages (drift, decline, rigidity, lock-in) it is closest to right now.

Assess

• Take the HQ Score Assessment

Learn

• IA-04: The Vendor Relationship Spectrum

Apply

• The Vendor Contract Audit Workbook
• The Vendor Register Blank Template

Related

• Vendor Lock-In
• Performance Drift
• Switching Cost
• Contract Rigidity