A transition is not a contract event. It's a controlled transfer of accountability—under live load.
Executive Summary
Most vendor transitions fail for one reason: governance starts after the move, not before it. The predictable result is knowledge loss, SLA ambiguity, and financial leakage in the first 90 days. This article lays out a practical transition model: a risk heatmap, a Day 0–180 stabilization timeline, and the controls that keep service continuity and value intact.
Why transitions fail (the non-obvious reasons)
- No clean baseline: you can't "improve" what you didn't measure pre-move.
- Ownership gaps: responsibilities split across the old vendor, new vendor, and internal teams.
- Cadence mismatch: operational reviews exist; governance decisions don't.
- Leakage blind spots: overtime, rework, and SLA penalties rise quietly.
Risk heatmap: what to map (and how)
Build a heatmap across four dimensions: operational, financial, compliance, and reputation. For each, define:
- failure modes (what breaks)
- leading indicators (what signals early)
- controls (what prevents/contains)
- owners (who is accountable)
Leakage controls (the part leaders underestimate)
Transitions tend to inflate hidden costs: rework, overtime, temporary staffing, duplicated tooling, and SLA penalties. Put in place a simple weekly leakage view: cost variance, rework rate, exception volume, and penalty exposure. If you can't see it weekly, you'll pay for it monthly.
If you're planning a transition (or recovering from one), we can set up a stabilization cadence fast.
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