Many managers chart strategy without a full understanding of the sources and distribution of profits in their industry. Sometimes, they focus their sights on revenues instead of profits, assuming that revenue growth will eventually translate into profit growth. In other cases, they simply lack the data or the analytical tools required to isolate and measure variations in profitability. Whatever the cause, an incomplete understanding of profits can create blind spots in a company’s strategic vision, leading it to overlook attractive profit-building opportunities or to become trapped in areas of weak or fading profitability.