Coming late 2026Now available

The Book That Tells You What NOT To Do Before You Spend Another Dollar on Growth

Seriously Don't Do That is the counter-playbook for B2B founders and revenue leaders who are tired of burning cash on broken sales motions. 11 chapters. 11 expensive mistakes. The frameworks to fix them, before they cost you your company.

By Dan Griffith, GTM advisor, enterprise sales operator, host of Seriously Don't Do That

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Book cover of Seriously Don't Do That: A Founder's Field Guide to Building a Revenue Engine That Scales Without You, by Dan Griffith
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11 Expensive Mistakes. 11 Counter-Plays. Zero Fluff.

Plus: practical worksheets in every chapter. Copy, paste, and use them in your sales operations the same week.

Portrait of Dan Griffith, GTM advisor and author, smiling in a white quilted pullover

Written by Dan Griffith

GTM Advisor · Host of Seriously Don't Do That · Founder, Greater Gain Group

Dan Griffith has spent thirty years in enterprise sales, from Fortune 50 floors at IBM and Siemens to the chaos of early-stage startups, to building Greater Gain Group, where he helps B2B technology companies build the revenue system they're missing.

He's hired the wrong reps, burned cash on agencies that delivered brand guidelines and zero meetings, and built pipelines that lied to him, his team, and his board. Those scars are what built the frameworks in this book. This isn't theory from someone who read about sales. It's thirty years of carrying a number, making the mistakes, and building the systems that actually scale.

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Motion is not the same as momentum. Running on a treadmill is motion: you're sweating, you're working hard, but you're staying in the same spot. Momentum is skiing downhill. This book is about building the system that creates momentum.Dan Griffith, from the Introduction