In effect, focusing on lead time will ensure that we are able to serve our customers at a speedier pace whilst reducing the effort we put into it – without even optimising the actual value-adding activities. We know, as a rule of thumb, that a 50 % lead time reduction is not an overly ambitious target in most organisations. From our 20 years of process improvement work, we have also seen that by reducing lead time by 50 %, the E2E process will result in a 20 % increase in throughput due to the disappearance of wasteful activities. All of this is done without changing the actual value-adding activities. Thus, a lead time reduction is a main lever for raising productivity.