Lean Six Sigma is now being widely adopted by financial institutions, retailers, hospitals and other corners of the services industry. Lean Six Sigma is a blend of two concepts: lean manufacturing, which is aimed at reducing waste, and Six Sigma, which helps companies reduce errors. Together they can help companies reap the benefits of faster processes with lower cost and higher quality. From our research and experience with clients, we've learned that despite its growing popularity and impressive results at some companies, Lean Six Sigma often fails to deliver expected results. Bain’s management survey of 183 companies found that 80 percent are not achieving their expected value from Lean Six Sigma efforts, and 74 percent have failed to achieve their savings targets.