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ISSUE 001SUMMER 2026

CI-1CONSULTING RECRUITING CHAPTER 2 OF 10REVIEWED 2026-07-31

Management consulting: questions, projects, and outputs

See how one client decision becomes an issue tree, separate workstreams, analysis, a recommendation, and an implementation plan.

Terms such as “workstream” become useful only when the reader can see the chain from the client’s decision to the team’s actual work.

WHAT THIS CHAPTER TEACHES

  • Start with a decision rather than a broad topic. “Improve growth” is vague; “Which two actions can add $20 million of profitable revenue within eighteen months?” is decision-ready.
  • Break the decision into an issue tree of smaller questions that can collectively support the answer.
  • Turn major branches into workstreams with an owner, question, evidence, output, and deadline.
  • Use hypotheses to prioritize analysis rather than treating every branch as equally important.
  • Recombine the workstreams through the Minto Pyramid: recommendation first, supporting reasons second, evidence third.
  • Recognize that the final output may be a recommendation, implementation plan, operating model, financial case, dashboard, workshop, or transferred capability—not merely slides.

Worked project map

Client decision: How can a neighborhood gym add $250,000 of annual operating profit without opening another location?

Workstream 1 — Revenue: Determine whether price, membership volume, retention, classes, or personal training can add profitable revenue.

Workstream 2 — Cost: Identify avoidable labor, vendor, equipment, marketing, and overhead cost without damaging service.

Workstream 3 — Feasibility: Test customer reaction, staff capacity, implementation cost, timing, and risk.

Final pyramid: Recommend the two actions first; then show the revenue impact, cost impact, operational requirements, and risks supporting them.

What a workstream actually contains

A workstream should have five visible fields: question, owner, evidence, output, deadline. “Customer workstream” isn't enough. “Determine why weekday member visits fell and recommend two retention actions by Friday” is clear enough to manage.

Consulting begins with a client decision

A project should be framed around a decision rather than a topic. “Study the market” is incomplete. “Should the company enter the market in the next two years, and through which route?” defines an action, time horizon, and output.

From question to issue tree

Write the decision at the top. Break it into smaller questions that can collectively support the answer. For a market-entry decision, branches may include market attractiveness, customer need, competitive advantage, economics, capabilities, entry mode, and risk.

The branches should be distinct enough to analyze and complete enough to avoid omitting a decisive issue. MECE is a diagnostic, not a requirement that reality fit perfectly into boxes.

Workstreams

A workstream is one defined branch of the project. It should state:

  • question;
  • owner;
  • evidence;
  • method;
  • output;
  • deadline;
  • decision affected.

A “customer workstream” is too broad. “Determine why enterprise customers aren't renewing and identify the two most effective retention actions” is manageable.

Hypothesis-led work

A hypothesis is a provisional answer that directs attention. It isn't a conclusion that the team protects. If early evidence suggests the problem is customer retention rather than acquisition, the team should prioritize cohort and customer work but remain willing to change direction.

Common project types

Consultants work on strategy, growth, pricing, operations, organization, technology, analytics, transactions, restructuring, risk, implementation, and transformation. A strategy project can end with a decision and roadmap. An implementation project can involve operating cadence, systems, pilots, and adoption over months or years.

Evidence and analysis

Teams use client data, interviews, market research, customer work, financial models, process observation, benchmarks, experiments, and expert knowledge. The analysis must be traceable to the recommendation. A sophisticated model isn't useful if it doesn't answer the client’s decision.

Synthesis

The final communication should lead with the answer, followed by the supporting reasons and evidence. This is the Minto Pyramid. Risks and next steps belong in the answer rather than being hidden at the end.

Implementation

A recommendation should identify action, owner, timing, cost, expected impact, risk, and first checkpoint. Consulting doesn't end with a presentation when the engagement includes implementation or capability building.

CURRENT AS OF 2026-07-31

Current firm materials describe consultants gathering and analyzing information, preparing communications, solving client issues, and presenting findings. The vocabulary varies, but decision, workstream, evidence, and synthesis remain useful concepts.

SOURCES

  1. 01Barbara Minto: The Minto Pyramid Principle and SCQ Framework
  2. 02McKinsey: Interviewing
  3. 03McKinsey: Solve
  4. 04Bain: Case Interview
  5. 05BCG: Case Interview Preparation
  6. 06McKinsey — Interviewing
  7. 07Bain — Interviewing
  8. 08BCG — Interview Process
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