The article discusses why studies on how company management affects its success have given mixed results. One reason is that the theories used don't always match the type of companies being studied. For example, some studies look at how the ownership structure affects performance but use theories meant for companies where owners also manage the business. This leads to confusion and inconsistent findings. Other studies that look at how the board of directors affects performance also face issues because they don't always consider the separation of ownership and control. Overall, the article suggests that future research should be more careful in choosing the right theories and companies to study in order to make progress in this area.