Slaygıants

I help challenger brands find the few decisions that let them beat far bigger competitors.

Strategy honed at McKinsey & Reckitt

The idea

Big companies win on size. Smaller ones win on sharpness.

Incumbents have more people, more money, and more momentum. You won't out-spend them. But you can out-think them — the right insight, the right position, the one move made before they see it coming. Finding those few decisions is the entire job of Fifth Stone.

$6M $20M

A single insight

Shoppers believed their detergent already cleaned the machine. Naming that one barrier — and rebuilding the position around it — tripled the business and lifted consumption ~90%. Not a bigger budget. A sharper decision.

What I do

Clarity before execution.

How I work

Fewer, better decisions — made with you, not handed over a wall.

01 — Find

Get to the real problem

Start with the constraint that actually matters, not the loudest one in the room.

02 — Decide

Pick the decisive move

One sharp bet beats ten hedges. We choose it together and pressure-test it before you commit.

03 — Ship

Make it land

Strategy is worthless unshipped. I stay hands-on until the move is live and working.

About

I've spent my career finding the insight that changes a company's trajectory. At McKinsey, I owned global brand strategy for the firm's flagship events — Davos, CES, and the rest — shaping how those stages spoke to a few hundred C-suite leaders at a time. At Reckitt, I turned single consumer insights into growth, most memorably taking one brand from $6M to $20M.

The thread is the same everywhere: big-brand discipline, aimed at the few decisions that decide everything. Today I bring that to founders and challenger brands — including current advisory work with Northeastern University.

Engagements stay small and senior. You work directly with me — not a rotating bench of juniors.

David Coyne
Founder, Fifth Stone Advisors · MBA, Cornell (Johnson)

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