The five whys helps to quickly identify the root cause of a problem, it is easy to use, and requires no in depth analysis. Here is a simple 5 why I used in the past to begin discussion on hospital care we purchased from other hospitals.
It started like this why are costs high for fee basis services?
We do not know.
Why do we not know?
We have not analyzed the cause.
Why have we not analyzed the cause?
It was not our focus?
Why was it not a focus?
Our team had competing demands but will now review these costs as a priority.