No, this is a common misconception. While financial data is critical, it is always used alongside non-financial information. This includes market research data (customer satisfaction, brand perception), operational data (quality metrics, capacity utilisation), and HR data (employee turnover, morale). An effective strategy integrates both quantitative financial metrics and qualitative non-financial factors to get a complete picture of the business and its environment. Relying solely on financial data can lead to short-term thinking.