Without theory we can only copy.
Hard work and best efforts will not by themselves dig us out of the pit.
A manager of people knows that in this stable state it is distracting to tell the worker about a mistake.
Research shows that the climate of an organization influences an individuals contribution far more than the individual himself.
The job can't be finished only improved to please the customer.
People copy examples and then they wonder what is the trouble. They look at examples and without theory they learn nothing.