A manager of people knows that in this stable state it is distracting to tell the worker about a mistake.
A system is a network of interdependent components that work together to try to accomplish the aim of the system. A system must have an aim. Without the aim, there is no system.
We are here to learn, to make a difference and to have fun.
People need to know how their job contributes.
Shrink, shrink variation, to reduce the loss.
Management of outcomes may not be any more than a skill. It does not require knowledge.