Three Models for Consultings AI Reckoning: Obelisk, Hourglass, Box

Three Consulting Models

Every consulting firm faces the same question in 2026: How do we reorganize around AI? Three distinct architectures have emerged.

The Obelisk (Big Four)

AI replaces junior work. Small partner layer, massive AI base, 60-70% fewer juniors. Competes on efficiency and scale. Fatal flaw: talent pipeline crisis in 5-10 years.

The Hourglass (MBB)

Middle management is most automatable. Preserved partners and juniors, hollowed middle. Competes on judgment. Fatal flaw: missing rung problem.

The Box (Boutiques)

Kill the pyramid. Flat teams, 1:1 ratios, outcome pricing. Competes on expertise. Fatal flaw: cant staff large programs.

The Key Insight

The only losing move is not choosing — trying to preserve all options while competitors commit and execute.


Read the full analysis on The Business Engineer.

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