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# How a case works, and what you'll do as an Associate
- URL: https://www.associateshandbook.com/how-a-case-works-and-what-youll-do-as-an-associate/
- Published: 2026-10-06T08:58:32.000Z
- Updated: 2026-10-06T08:58:31.000Z
- Author: Moritz
- Tags: Consulting 101, Concept

*The Case is the basic unit of consulting work. A Consulting team is tasked with cracking the case.* 

Consulting is a service business. A client faces a tough problem and lacks the internal resources to solve it, so they buy external, specialised help. You are always a service provider to the decision-maker, which is why the client comes first in every conflict of priority.

The unit of that work is the case.

**What a case is**

A case is a defined perimeter of work where a client hires a consulting firm to solve a problem for money. McKinsey sometimes calls them studies, BCG calls them engagements. Same thing.

They have a goal, a timeframe and a written scope stating the agreed outcomes. They range from multi-year transformations with 40+ consultants down to three people working for three weeks. A due diligence, an ESG screening, a strategy review, an M&A integration. As varied as business problems get.

Cases are ideally structured around these four steps:

**1\. A clearly defined problem statement.** What needs to be solved, with enough context to make it meaningful.

*The retail chain HyperPingu has a broad store footprint across all major Spanish cities and a well-recognised brand. It has seen a 65% decrease in EBITDA over three years, and on the current trend it will lose money this year for the first time in two decades. Store costs and salaries have not risen. Purchase prices have stayed flat. What can HyperPingu do to find a path back to profitability?*

**2\. A hypothesis-driven breakdown.** At Bain this is called answer-first thinking. You form a view early, based on client interviews, the partners’ industry experience, and very selective exploratory analysis that is itself driven by hypotheses.

*For HyperPingu the hypothesis might be that the profitability drop is driven by an overproportioned price decrease made to match two key competitors.*

The point of the hypothesis is focus. Without one, teams boil the ocean, researching in all directions and hoping something turns up.

**3\. Workstreams that test the hypothesis.** The case breaks into parallel pieces, each attacking one part of the question. 

*For HyperPingu, Phase 1 might be: benchmark prices on comparable items against the two competitors, analyse HyperPingu’s own price adjustments and promotions, and evaluate the shift in product mix and its margin impact.*

Contradictory findings send the leadership team back to redirect the effort. That is the system working rather than failing.

**4\. A clear recommendation, backed by rigorous analysis.** In HyperPingu’s case the hypothesis held. Competitors had cut prices on key items, roughly 5% on fruit, vegetables and selected known brands. HyperPingu had cut by almost 10% on some products, partly through overdone coupons, while customers simultaneously shifted toward less profitable products. The team raised prices back to match competition, reduced discounting, and redesigned the store layout to promote higher-margin products. The chain returned to a clear path to profitability.

**Scope, and scope creep**

Running alongside all of this is the scope: the work packages managers and partners agreed with the client. It is built on the initial hypothesis, so it shifts, and that is normal.

Be flexible, and be aware of **scope creep**, the gradual enlargement of the work beyond what was agreed. There is little you can do about it in your first years beyond flagging it carefully or asking what prompted the extra work. Noticing it is still worth something, because the manager may not have.

**Who does what**

**Partners and Senior Partners** own the client relationship and set the agenda. Senior Partners are client heads: the CEO meetings, the lunches, the strategic conversations. Junior Partners take an active role in case-level decisions. They bring years of industry experience, structured thinking, and a sharp eye for anything that does not fit their mental model of the case. Worth remembering that almost every partner was an associate once. They still know all your tricks.

**Managers, Senior Managers and Project Leaders** run the case day to day. They set priorities, break down the problem, and drive the thinking that shapes the approach. They hold every string: cracking the problem, orchestrating the team, keeping the partner engaged, keeping the client happy. Often the hardest working years of the journey, and for many people the most fun.

**Consultants** drive content in their streams, do the deep analysis, and lead associates. They work in the machine room. Good consultants understand how their piece fits the whole case and flag insights and problems upward before they are asked. When you are starting out, they are your best source of practical knowledge.

**Associates** are the foundation. You own the data, run the deep analyses, and produce the insights the recommendation rests on. You may be pulled into a CEO meeting because a specific number is needed, and nobody in the room will know the model or the underlying data as well as you do.

A worked example of how a manager allocates. On HyperPingu’s Phase 1, one team is enough. The manager gets three people: a Consultant, a Senior Associate and an Associate. She pairs the Associate with the Consultant on the two data-heavy questions, since they overlap. The Associate handles the data, the Consultant supports, forms hypotheses and holds content ownership. The Senior Associate takes the competitor benchmarking, which is cleanly separate and fits his seniority.

**Your three responsibilities as an Associate**

**• Analysis.** You are the team’s archaeologist, digging through data, finding patterns, guaranteeing accuracy.

**• Team culture.** Dinners, quizzes, or simply a good attitude in the room. Your influence here is larger than you think.

**• Client interaction.** You will work with junior client staff to collect data and gather insight, and these are some of your best learning opportunities.

Which brings us to the word that causes the most confusion in your first six months. An Engagement Manager at McKinsey put it better than I can:

*“What I didn’t understand in the beginning was the difference between ownership and doing it yourself. Owning your workstream means you’re responsible for getting it done, not that you have to do it alone. Ask others, delegate upward, pull in your EM or experts, and if you’re completely lost, say so: ‘If I don’t get very active help here, this will fail.’ As an insecure overachiever, you have this feeling that you must figure it all out yourself. But ownership is about getting it done well, not getting it done alone.”*

**START THIS WEEK**

**1\.** Figure out one fun thing you can do to contribute to the team culture - buy snacks, organize coffee or a team run.

**2\.** Identify the one question your workstream has to answer. Write it as a sentence, put it at the top of your notes, and check your work against it every morning.

**Understand the context at the beginning of a case, and do not be afraid to ask your team about it. Even the partners.**