Resilient Just-in-Time
Balance lean operations with buffers, nearby suppliers, and diversified sourcing
- Difficulty
- Advanced
- Time to result
- ~months to results
- Steps
- 6
- Confidence
- 96%
Resilient Just-in-Time preserves the useful parts of lean production while restoring the capacity to absorb disruption. Begin by identifying components whose absence would stop an entire product or service, then evaluate inventory, supplier proximity, geographic concentration, and restart times according to operational consequences rather than a single financial metric. Hold proportionate buffers for critical inputs, maintain viable relationships with suppliers, and diversify production where one region or facility represents a catastrophic dependency. The framework does not require making everything domestically or stockpiling indiscriminately. It treats supply-chain design like portfolio construction: accept efficient concentration where failure is tolerable, but pay for redundancy where delayed replenishment would create losses far greater than the savings from minimal inventory.
Origin
Extracted from Masters in Business, where Peter Goodman contrasted Toyota's practical production system with the metric-driven inventory reductions promoted by consultants and public-market incentives.
Core principles
- 01Efficiency without resilience creates hidden costs
- 02Metrics must reflect real customer outcomes
- 03Critical inputs need margin for disruption
- 04Suppliers should be treated as long-term partners
- 05Redundancy is insurance rather than waste
How to run it
- 1
Map production-stopping dependencies
List the components, suppliers, workers, and transport links whose loss would halt delivery. Distinguish critical dependencies from items that can be substituted easily.
Pro tip Include restart time and replacement lead time, not just current purchase price.
Watch out A cheap component can still be a catastrophic single point of failure.
- 2
Measure real operating outcomes
Track completed orders, delays, emergency freight, lost customers, and service reliability alongside inventory ratios. Reject metrics that improve while the underlying operation deteriorates.
Pro tip Ask what behavior each metric encourages at month-end or quarter-end.
Watch out Teams will optimize the score even when doing so damages the system.
- 3
Set proportionate buffers
Hold enough inventory or spare capacity to cover plausible disruption for critical inputs. Keep leaner levels where replenishment is fast and alternatives are abundant.
Pro tip Base buffer size on disruption duration and business impact rather than a universal inventory target.
Watch out Indiscriminate stockpiling can create waste without reducing meaningful risk.
- 4
Strengthen supplier partnerships
Treat vital suppliers as continuing partners rather than costs that can be switched off instantly. Consider whether order cuts would destroy capacity needed during recovery.
Pro tip Discuss contingency capacity and restart requirements before a crisis.
Watch out Production facilities often take months and major investment to restart.
- 5
Diversify critical sourcing
Add suppliers, factories, or routes in different regions when one location dominates an essential input. Preserve efficient global sourcing while creating a credible backup.
Pro tip Prioritize semiconductors, medicines, safety equipment, and similarly strategic inputs.
Watch out A nominal second supplier is not useful if it shares the same upstream bottleneck.
- 6
Stress-test the design
Simulate border closures, demand spikes, worker shortages, transport failures, and supplier shutdowns. Compare the cost of preparedness with expedited freight, lost sales, and prolonged downtime.
Pro tip Repeat the test as incentives, suppliers, and geopolitical risks change.
Watch out Resilience commitments often fade as the last crisis becomes less vivid.
In the wild
An industrial-generator plant eliminated inexpensive sheet-metal brackets to improve its inventory metric. Because generators required crane-scheduled installation, missing brackets delayed orders, triggered costly expedited deliveries, and upset contractors even though the spreadsheet showed a leaner operation.
→ A trivial inventory saving produced larger fulfillment costs and lost sales.
A retailer sourcing a critical product only from China adds a qualified factory in Mexico and reserves limited capacity there. The second source costs slightly more, but it can replenish regional customers when Pacific shipping is disrupted.
→ The company preserves global scale while gaining a practical regional fallback.
Common mistakes
Optimizing one financial ratio
Lower inventory can improve return on assets while simultaneously increasing delays, emergency freight, and lost sales. The ratio is not the operation.
Treating every buffer as waste
Inventory and spare capacity are wasteful only when their insurance value is lower than their cost. Critical low-cost components often justify a buffer.
Abandoning suppliers during downturns
Canceling every order may remove the capacity needed when demand returns. Suppliers that cannot survive the interruption cannot participate in the recovery.
Is it for you?
Best for
It is best for organizations whose critical products depend on complex, geographically concentrated supply chains.
Not ideal for
It is less useful for disposable, easily substituted inputs with many reliable local suppliers.
From the transcript
“What's happened is we've eliminated all the margin for trouble.”
“The question is are you doing it in a way that's common sensical or in a way that's purely driven by trying to hit some…”
“It is a call for greater actual resilience alongside this kind of ruthless efficiency.”
From the episode
How the World Ran on Empty with Peter Goodman
Peter Goodman