Razn Journal

Structured thinking for candidates, consultants, and strategy teams.

Essays on issue trees, MECE logic, Pyramid Principle communication, and the habits behind sharper strategic work.

Issue Trees: The Architecture of Structured Thinking
Frameworks

April 14, 2026 · 8 min

Issue Trees: The Architecture of Structured Thinking

An issue tree isn't a template to fill in. It's a way of seeing problems clearly. Here's how to build ones that actually work.

The Pyramid Principle: Answer First, Explain Second
Communication

April 14, 2026 · 7 min

The Pyramid Principle: Answer First, Explain Second

Consultants communicate differently. The Pyramid Principle is why. Here's how to internalize it before your interview.

The MECE Mistakes That Sink Strong Candidates
Frameworks

April 14, 2026 · 6 min

The MECE Mistakes That Sink Strong Candidates

Everyone knows MECE. Far fewer can actually execute it under pressure. Here are the failure modes that interviewers see constantly.

Market Sizing in Case Interviews: How to Estimate Without Freezing
Case Prep

April 14, 2026 · 7 min

Market Sizing in Case Interviews: How to Estimate Without Freezing

Market sizing is not a math trick. It is a test of structure, assumptions, and calm judgment under uncertainty.

Profitability Cases: The Framework Most Candidates Use Too Shallowly
Frameworks

April 14, 2026 · 8 min

Profitability Cases: The Framework Most Candidates Use Too Shallowly

Revenue minus cost is only the beginning. Strong profitability analysis goes past the formula and finds the real driver fast.

Profitability Cases: How to Find the Real Margin Driver Fast
Case Prep

April 14, 2026 · 7 min

Profitability Cases: How to Find the Real Margin Driver Fast

The strongest answers in profitability cases separate symptom from cause quickly, then focus analysis where the economics actually moved.