You can create the right strategy, hire the right people, run a textbook transformation - and it will still die. Most leaders go through this cycle again and again, and never see it.
The reason is climate. Every organisation has a temperature. Run it too hot and it burns out in churn, politics, and exhaustion. Run it too cold and it solidifies into apathy, caution, and inertia. Change only takes hold in a narrow band that exists between them, the same way life only flourishes in a solar system's habitable zone - neither scorching hot nor frozen solid.
The Goldilocks Zone takes that concept and turns it into a way to understand the real leadership work - to create the conditions where change takes root, and then to hold the organisation in that change-sustaining zone.
This is a book about climate management, not change management. It is the physics beneath any transformation - the first principles that let you measure your organisation's temperature, correct it, and create a space where transformation stops being something people endure and becomes something they reach out for.