It’s been well established in lean companies that traditional management accounting systems do not provide relevant and reliable information to decision makers。 The CFO， as steward of a company’s management accounting system， must provide the leadership to improve the quality of the information produced by a company’s management accounting system so it is aligned with a company’s lean strategy， lean operations， and continuous improvement。 The integration of a lean management accounting system with a company’s lean strategy will lead to improved decision making by all users and drive long-term financial success。 Lean management accounting helps all users， from executives to line managers， better understand the relationships between lean operating performance and financial performance。