I could write at length over the individual strategies in the book. They are all significant, though only a subset applies at any given time. The book gives a good strategic manager tools, and he has to decide which are relevant to his situation.
If you want it, you can find it here: Co-Opetition : A Revolution Mindset That Combines Competition and Cooperation : The Game Theory Strategy That’s Changing the Game of Business
Any manager of any company would benefit from this book. Buffett lovers, if you have read the last 25-30 years of annual reports from Buffett, and notable things he has said outside of that, you likely do not need this, unless you have specific questions on management that you want answered by Buffett, and you can’t remember what he said in the past.
For most of the rest of us, this will still be a valuable book. If you want to buy this book, you can buy it here: Warren Buffett on Business: Principles from the Sage of Omaha