Companies all over the world try their best to improve their business by implementing efforts such as Six Sigma, Lean Manufacturing, or a combination of the two methodologies. Logic would tell you that these two methods would be the right approach because you would have an improvement method that, through Lean, reduces waste and make value flow, while Six Sigma reduces and controls variation. If this were true, then why is it that many of these initiatives simply aren’t delivering quantifiable bottom-line results?

After having studied many of these on-going improvement efforts,...