It's only the last turn of a bolt that tightens it - the rest is just movement.
The most dangerous kind of waste is the waste we do not recognize.
The best approach is to dig out and eliminate problems where they were assumed not to exist.
Improvement usually means doing something that we have never done before.
When you buy bananas all you want is the fruit not the skin, but you have to pay for the skin also. It is a waste. And you the customer should not have to pay for the waste.
Unless you change direction, you will end up where you are headed.