The fourth industrial revolution is almost there, and manufacturing industries are preparing for industrial transformations, called also as Industry 4.0 (I4.0). In this context, three pillars of transformation, namely technological, methodological and managerial transformation, must be considered simultaneously. This paper emphasizes mainly on the question of the managerial evolution. Through the industrial excellence prism of the World Class Manufacturing (WCM), we will focus initially on the risks and opportunities associated with digital transformation and then analyses the success factors of the transformation, such as engagement, involvement and communication. Based on this observation and our concrete analysis of the time distribution of the activities of operational managers, a proposal will finally be to use the technologies and methodologies transformation to free up time for the manager, allowing to refocus on the main aspect of his job: human relations. With this prioritization of actions, digital transformation can be deployed and bring the maximum of performance to industries.