Thinking with Peter Schwartz and Eliyahu Goldratt

I recommend these two fantastic writers wich I really enjoy. Goldratt is physician, a guru of industry, and wrote the best-seller "The Goal". He idealized the TOC, Theory of Constraints, that study the necks in a supply-chain. Peter Schwartz wrote severals books about scenary, that is very current and amazing topic in a supply-chain. The most famous book is "The Inevitable Surprises".