The document describes the journey of a founder in improving their business. It begins with the founder hiring more salespeople in an attempt to grow the business. This proves to be unsuccessful, as they were not targeting the right customers. The founder then undertakes an analysis of customer segmentation and identifies an ideal customer profile. With a focus on this ideal profile, the business is able to improve customer retention and year-over-year growth. The founder learns that persistence can be counterproductive if heading in the wrong direction, and that understanding customers is key to success.