Five Eyes. The Five Eyes is used in conjunction with the fishbone diagram and helps us to uncover the root causes of performance issues. What is the five why's I creative probing technique to get to the root cause of an effect or a problem? The answer to the first Why? uncovers another reason, action rates and nine another vi it often takes five why's arrive at the root cause of the problem. Let's look at this video that has the example five by analysis