The 50% Problem book cover

Get the Book — $9.99 → Available on Apple Books, Barnes & Noble, Kobo & more

Free companion to the book

The Operator’s Playbook

You read the story. This is the tool. Twenty-five working lessons from The 50% Problem — one constraint at a time, in the order K-Bar found them. Built for owners and ops leads in any service trade.

You’ll get the PDF instantly, plus first word when Book 2 — The Release Problem — arrives. No spam. Unsubscribe anytime.

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What’s inside

Count your own hour

Measure where revenue-producing time actually goes — and how much of it never reaches a customer.

Find the constraint

Why it’s not sales, not demand, and not your people — and how to prove it with your own numbers.

Protect the hour

The truck, stock, and dispatch systems K-Bar used to stop paying skilled people to drive to supply houses.

Plus 22 more lessons covering trucks and loadouts, stock discipline, drivers as a resupply system, dispatch, and how to test every rule against the constraint.

The book is the theory. Sub Structure is the practice.

The same Theory of Constraints thinking that runs through The 50% Problem is built into Sub Structure — scheduling software that only releases jobs to crews when information, materials, and labor are actually ready.

See How It Works