Delivering the synthesis
The last 2 minutes of a case matter as much as the first 20. Most candidates blow them. The synthesis is your closing argument — a learnable structure that leaves the interviewer thinking: this person thinks like a consultant.
The synthesis is the moment where everything you've analyzed comes together into a clear, confident recommendation. Done well, it seals the deal. Done poorly — meandering, hedged, or missing entirely — it undermines a strong prior performance.
Length: 90 seconds to 2 minutes. No longer. The synthesis is a headline with supporting evidence — not another analysis layer.
What a synthesis is (and isn't)
- A summary of everything you discussed
- A list of findings without a conclusion
- “It depends on a few factors...”
- Repeating your framework back to the interviewer
- A clear, direct answer to the original question
- Backed by 2–3 key findings from your analysis
- With a specific, actionable recommendation
- And 1–2 risks or conditions worth flagging
The synthesis formula
Every strong synthesis has four parts. Deliver them in this order.
The Answer (one sentence)
State your recommendation directly and immediately. Don't build up to it — lead with it.
The Evidence (two or three points)
The key findings that support your recommendation. Each point should be one to two sentences with a number where possible.
The Risks / Conditions (one point)
What could change your recommendation, or what needs to be true for it to work.
The Next Step (one sentence)
What should the client do first.
What it sounds like
Read each full synthesis. Notice the structure.
Strong synthesis — profitability case
RetailCo's profits are down $32M despite flat revenue.
"My recommendation is that RetailCo address its COGS problem through two parallel moves: renegotiating supplier contracts to lock in fixed pricing, and reversing the shift toward low-margin basics. Here's what the analysis showed. First, the entire profit decline is cost-driven — revenue is essentially flat. Second, COGS jumped from 55% to 60% of revenue — that's a $41M increase driven by a combination of raw material cost spikes and a deliberate shift toward lower-margin product categories. Third, the low-margin basics strategy is a losing battle against fast-fashion competitors with structural cost advantages RetailCo doesn't have. The main risk is supplier negotiation leverage — if RetailCo represents less than 5% of a supplier's volume, they may not have pricing power. I'd validate this before committing to a negotiation strategy. The immediate next step is to conduct a supplier concentration analysis and identify which contracts are up for renewal in the next 6 months — those are the fastest wins."
Leads with a recommendation (not a summary). Uses specific numbers. Acknowledges a real risk without hedging the whole conclusion. Ends with a concrete first action.
Strong synthesis — market entry case
Should BrightBrew enter the Japanese coffee market?
"My recommendation is yes — BrightBrew should enter Japan, but via a joint venture with a local hospitality operator rather than an organic build. Three findings drive this. The premium coffee segment in Japan is growing at 6–8% per year and is less saturated than the overall market. BrightBrew's brand positioning — craft, origin-focused, millennial-targeted — aligns well with where Japanese consumer preferences are moving. However, BrightBrew has significant operational gaps: no local supply chain, no brand recognition, and no Japanese-market experience. These gaps make a solo organic build too slow and too risky for a first international market. The key condition for this to work is finding the right partner — specifically one with Tokyo real estate relationships and experience running premium food and beverage concepts. If that partner doesn't exist or isn't willing to structure a fair JV, the risk profile changes materially. The next step is to commission a partner scan — identify three to five Japanese hospitality groups who could credibly operate BrightBrew's brand standards, and begin preliminary conversations within the next 90 days."
Clear yes/no answer with a specific entry mode. Evidence is structured in three points with numbers. Risk is concrete and honest. Next step has a timeline.
Common synthesis mistakes
Burying the recommendation at the end
The most common and most damaging mistake.
“So we looked at revenue and it was flat... then we looked at costs and found that COGS increased... and there was also a mix shift... and the supplier contracts are on spot pricing... so basically what I'm saying is... the recommendation would be to look at renegotiating contracts.”
The recommendation arrived at the end of a 90-second trail of breadcrumbs. By the time you got there, the interviewer had lost the thread. Lead with your answer. Always. The evidence comes after.
Hedging everything
Language that signals a lack of conviction.
“It could be useful to potentially consider exploring whether renegotiating contracts might be a viable option depending on the circumstances...”
Consultants are paid for decisions under uncertainty. You don't need to be 100% certain — you need to make a call and own it. Say: “I recommend renegotiating the top 5 supplier contracts. Here's why.” If there are conditions, state them clearly as conditions — not as hedges woven into the recommendation itself.
No numbers in the evidence
Description without quantification isn't evidence.
“Costs have been increasing and margins have been declining, which is having a significant impact on profitability.”
Compare: “COGS increased from 55% to 60% of revenue — that's a $41M increase that accounts for essentially the entire profit decline.” Numbers make your evidence credible and specific. Every evidence point should contain at least one quantified finding.
Forgetting the next step
A recommendation without a first action floats in the air.
Ending with a recommendation is good. Ending with a recommendation AND a specific first action is great.
“The immediate next step is X” tells the client (and the interviewer) that your recommendation is actionable. Not “do some analysis” but “run a supplier concentration analysis on the top 20 COGS line items by end of Q1.”
Build your own synthesis
Use this template out loud. Pick any practice case you've done before and structure a synthesis using the four-part formula.
The Answer
“My recommendation is [clear, direct call — yes/no/do X].”
The Evidence
“Three findings support this. First, [finding + number]. Second, [finding + number]. Third, [finding + number].”
The Risk / Condition
“The main risk is [specific thing that could change the recommendation]. This is contingent on [condition that must be true].”
The Next Step
“The immediate next step is [specific, concrete first action with a timeline].”
Practice tip: Record yourself delivering a synthesis out loud. Play it back and check: Did I lead with the answer? Did I use numbers? Did I hedge? Did I end with a next step?
The one-sentence test.
Can you summarize your recommendation in one sentence?
If yes: your thinking is clear. Deliver it. If no: you haven't fully synthesized yet. Keep working until you can.
If your one-sentence version sounds vague or generic, your recommendation needs more specificity before you deliver it.
Rate your synthesis
Think about your last practice case. Check each habit you consistently demonstrate.
Deliver your synthesis under pressure.
The best way to build this skill is to practice the full arc — from opening to synthesis. Try a case and nail the close.
Try a case