The practice set
What sits on the table
Every number on this page is counted from the library you practice in. Original cases, drills, and guides. Nothing estimated, nothing rounded up.
Library
- Original cases
- 64
- Voice-ready
- 64
- Guided-ready
- 64
- Active drills
- 554
- Drill rooms
- 6
- Guides
- 527
Firm style
- McKinsey22
- Bain18
- BCG17
- Independent4
- Deloitte1
- Kearney1
- LEK1
Case type
- Profitability17
- Growth14
- Operations12
- Market entry9
- M&A8
- Pricing3
- Digital / AI1
Difficulty
- Medium36
- Hard21
- Easy7
Drill rooms
Case math
120
Brainstorming
90
Charts & exhibits
90
Structure
90
Synthesis
84
Market sizing
80
What Ned grades for
Disaggregate first
Revenue and cost split before the first tree. Profitability cases collapse when the candidate starts with ideas instead of buckets.
Breakeven before opinion
Market-entry structures score higher when the candidate quantifies what has to be true before saying whether to enter.
Customer value anchors price
Pricing recommendations hold up when they start from what the customer gets, not from the cost stack.
Answer first, then why
The close is graded on whether the CEO could act on the first sentence. Two supporting points, one number, one risk.
Case interview scoring — seven debrief dimensions
How partners mark a case, bad vs good examples, leak diagnosis, and a practice assignment. Live anonymized product aggregates appear when privacy floors clear.