U.S. businesses have seen many failures due to ineffective performance analysis and problem-solving using key performance indicators. At the same time, many businesses have used performance analysis to adjust their strategies and turn problems into opportunities. By doing so, they have turned their business results around, gained market share, met and exceeded sales plans, and continued to build customer loyalty.

- What are two major U.S. companies besides Walmart in which: one that has struggled or failed in the past ten years and one that has succeeded when considering retail performance?