As the book will contain more content than might be in the finished book, this outline should also contain those parts.
Hook, an initial part of the book that'll hook the people in. It should already provide value to whoever starts reading it, therefore it shouldn't be a description, nor an intro per se.
Introduction, an intro to the book. It should describe the motivation behind writing it and the process of it being written. This can help align the reader with your motivations and expectations.
Content, still to be brainstormed & decided in another issue (#3). This section should read as a book, have structure as a book, provide value, and tell a story.
Toolbox, a collection of tools for managers in engineering. This toolbox will reference case studies.
Case Studies, a collection of case studies. This section will inform the tools in the toolbox section.
Conclusion, tie loose ends, reiterate essential points, and provide a clear send-off to the reader. Share any concluding thoughts or future outlook.
A very first draft of the outline for the book.
As the book will contain more content than might be in the finished book, this outline should also contain those parts.