Cost reduction

Chapter 5: Cost Reduction

Cost reduction cases can look simple from far away:

Costs are too high. Cut them.

But that is not how real businesses work. Some costs are waste. Some costs protect quality. Some costs create growth. Some costs are fixed in the short term. Some costs can be reduced only with investment, time, or risk.

Your job is not to cut everything.

Your job is to reduce the right costs.

The intuition

A cost reduction case is about improving efficiency without damaging the engine.

Use this model:

• Find the biggest controllable cost drivers.
• Understand what causes them.
• Reduce waste or redesign work.
• Protect customer value and future growth.

The strongest candidates show restraint. They know a payroll cut can hurt service. A supplier switch can hurt quality. A smaller product range can simplify operations but disappoint customers. The answer needs economics and judgment.

If you remember one line from this playbook, make it this:

How to recognize it

You are probably in a cost reduction case when the prompt says:

• Costs are rising.
• Margins are under pressure.
• The client needs to save $50M.
• The company wants to improve efficiency.
• A process is too expensive.
• Revenue is stable, but profit is declining because costs are up.

Cost reduction often overlaps with profitability and operations. If the case is mostly about process flow, capacity, or bottlenecks, it may become an operations case. If it is mostly about cost categories and savings, it is cost reduction.

The client question underneath

The client is asking:

Which cost levers can we pull, how much will they save, and what trade-offs do they create?

A complete answer includes savings size, implementation difficulty, timing, and risk.

The first 2 minutes

Clarify:

What cost reduction target are we trying to hit?

Is the goal total cost reduction, margin improvement, cash preservation, or efficiency?

Are there constraints, such as no layoffs, quality standards, service levels, or growth plans?

Which cost categories are largest or fastest growing?

The core structure

Use this as a workflow, not a set of parallel buckets. In a cost reduction case, you usually move in order: build the baseline, locate the cost, diagnose what is driving it, then choose and risk-test the savings levers.

This workflow separates two ideas candidates often mix together: cost type and cost area. Fixed versus variable tells you how the cost behaves. People, process, technology, assets, infrastructure, and one-time obligations tell you where the cost sits. If the cost buckets are not obvious, walk the value chain from inputs to delivery and support.

Once the diagnosis is clear, do not recommend every lever equally. The answer should narrow as it moves: from total cost, to the biggest controllable areas, to the levers that save money without damaging customer value or future growth.

The analyses that usually matter

Use the analyses to prove which savings are real and worth doing, not to make a longer list of cuts.

• Baseline reconciliation: Do the cost categories add to total cost, and how have they changed by product, store, region, customer group, or function?
• Variance and benchmarking: Which costs are unusual versus last year, budget, competitors, or industry norms?
• Driver decomposition: Is the cost high because of price, volume, labor hours, wage rate, utilization, waste, rework, complexity, or supplier terms?
• Savings sizing: What is the gross saving, what implementation cost is required, and is the saving recurring or one-time?
• Risk testing: What happens to quality, service levels, safety, reliability, morale, compliance, customer experience, or future growth?
• Implementation phasing: Which ideas are quick wins, which require pilots, and which are structural changes that need more time?

This is where cost reduction becomes judgment, not arithmetic. Delaying maintenance may save cash this quarter but create a larger problem later. Cutting support roles may look attractive on paper but overload core teams. Reducing customer-facing labor may save payroll while hurting wait times, quality, and repeat demand.

What weak looks like

Prompt: A coffee chain needs to reduce operating costs by 8% without hurting revenue. What should it do?

Weak: "They could reduce staff, negotiate with suppliers, close some stores, and spend less on marketing."

This lists levers but does not know which costs matter, how much each saves, or what damage each could cause.

What strong looks like

Strong: "I would start by understanding the current cost structure: which costs are fixed versus variable, recurring versus one-time, and outsourced versus retained. Then I would look at how those costs have trended over time and how they compare with industry benchmarks. From there, I would identify the categories that are largest, growing fastest, materially above benchmark, or not translating into real customer or operational value. For a coffee chain, I would look closely at labor scheduling, ingredient procurement, waste, and store-level productivity before cutting customer-facing quality. I would size each lever and test the risk. For example, better labor scheduling could reduce overtime without reducing service, while broad staff cuts might save money but hurt wait times and traffic."

This answer protects the business while pursuing savings.

Common traps

Do not cut the biggest cost automatically. Do not ignore service quality, safety, reliability, or brand. Do not count one-time savings as recurring. Do not recommend layoffs without considering morale, capability, and service. Do not forget implementation costs: automation and redesign may save money later but require upfront investment.

Practice it in CaseLab

Start a CaseLab cost reduction case and focus on prioritizing by impact and risk. Afterward, review whether you separated fixed and variable costs, sized the savings, and named trade-offs clearly. The best cost answers sound financially sharp and operationally humane.