Why Toyota is So Successful?

While reviewing my Lean Management talk in Mauritius for Africa expo tomorrow on How do we model the success of Toyota. There are 4Ps that have been emphasized by Toyota but when others try to learn from Toyota they merely see the surface of implementing their process improvement & problem solving tools without realize the importance of the other 2Ps which are people & philosophy which are the driving forces behind Toyota’s success. You can read about the details in The Toyota Way by Jeffrey Liker.