We humans like to do things in a consistent manner, each time we do something, it is comfortable to do it the way we did it before.

This is great if the way we have done it delivers the optimal outcome, but presents difficulties when the outcome is sub-optimal, and that is probably 99.99% of the time.

The management challenge therefore is not just to see a better way of doing things, but to institutionalise the process of identifying problems, and improving outcomes  as a part of the way things have been done in the past, make continuous improvement so automatic that nobody notices.