what are the benefits and costs of a lean six sigma program and how should they be tracked? how should the various functional areas in the organization be included in the lean six sigma initiative, and what role should senior and middle management play in this change initiative? do you agree with any of the points made by skeptics about the original six sigma program at 3m? explain why they believe that skepticism is warranted. how will lean six sigma affect the innovative culture at 3m, and is lean six sigma enough?