As we all know, Professors Hayes and Wheelwright of Harvard University 2 developed a four-stage model which can be used to evaluate the role and contribution of the operations function. The model traces the progression of the operations function from what is the largely negative role of stage 1 operations to it becoming the central element of competitive strategy in excellent stage 4 operations. Now, your task is to show us the way you can implement this to your current organization as an operation manager.