Supply chain modules have shifted decisively since 2020. The question is no longer how to minimise cost through lean inventory, but how to balance efficiency against the ability to absorb shocks. Assignments that still treat cost as the only objective miss where the module is actually pointing.
Map Beyond Tier 1
Most firms know their direct suppliers well and their suppliers' suppliers barely at all. Yet a large share of significant disruptions originate at tier 2 or below — a single speciality chemical plant, one wafer fabricator, one port.
For an assignment, construct a multi-tier map for one critical component. Identify:
- Direct supplier and its location.
- Known or likely sub-suppliers and their geographic concentration.
- Single points of failure — sites, straits, ports, or sole-source certifications.
- Lead time at each stage, and how long inventory covers a stoppage.
The Efficiency–Resilience Trade-Off
Resilience costs money. Buffer stock ties up working capital; dual sourcing forfeits volume discounts; nearshoring raises unit cost. A serious assignment quantifies this rather than asserting that resilience is good.
A workable approach: estimate the cost of the mitigation per year, estimate the expected loss avoided (probability of disruption × cost per day × expected duration), and compare. Even with rough figures, showing the calculation demonstrates the commercial judgement markers are assessing.
Four Mitigation Levers
- Inventory buffers — simple and fast, but expensive and unhelpful for long disruptions.
- Supplier diversification — dual or multi-sourcing, ideally across distinct geographies and tier-2 bases.
- Network redesign — nearshoring, friendshoring, regional-for-regional manufacturing. Slow, capital-intensive, structural.
- Visibility and contracts — supplier mapping platforms, contractual disclosure of sub-tiers, flexibility clauses. Cheapest lever and most often neglected.
Using an Established Framework
Anchor the analysis rather than inventing categories. Sheffi's resilience work, the SCOR model for process structure, or a straightforward risk matrix of likelihood against impact all provide defensible scaffolding. Reference the framework properly and apply it consistently.
Bringing in Sustainability and Regulation
Resilience assignments increasingly overlap with compliance. Modern slavery reporting in the UK and Australia, forced labour import rules in the US and Canada, and emerging EU due diligence requirements all demand exactly the multi-tier visibility that resilience requires. Noting that one investment satisfies two obligations is a strong commercial argument.
Structuring the Submission
- Scope — one product line or component, clearly bounded.
- Multi-tier map as a figure.
- Risk register: event, likelihood, impact, current control, residual risk.
- Mitigation options with indicative costs and benefits.
- Recommendation with phasing and the metrics that would monitor it.
- Limitations — what data you could not obtain and how that affects confidence.