The recent quality problems that Toyota encountered on its models, must recall us that the performance achieved in the past is not a great help for the future performances. Everyday, it is necessary to fight to create the conditions that bring robustness to the processes: New product Development, Production Preparation and Manufacturing all along the supply chain. In a context of Time To Market shortening, of high pace new products launch with always sharper technologies and with a level of diversification never reached before; being unaware of management rules or not applying them correctly will immediately lead to a punishment for the company and the deterioration of it's brand name, as well as its clients' safety. The value-based creating enterprise is much more than a simple collection of lean tools.