Like changing a wheel while the car is still moving
Process improvement can often be received with impatience and inflated expectations of its impact. One of the regular problems is that a particular piece of the organizations process is asked to be improved in isolation. This is a little like trying to change a wheel while the car speeds along the interstate! The one minor fix is still influenced by the wider system. It can take several improvements to elements of a process to see an impact overall. It needs to be realized that an entire process needs to be improved not just one element in isolation.