Value Stream Mapping and lean design principle, with triple bottom line

Meritor Manufacturing is so pleased with the outcome from previous suggestions that the consultants are invited back for more work. Using Value Stream Mapping (VSM), the consultants now suggest a redesign of the supply chain focused on lean design principles. Describe the changes that could be made in the factory that manufactures the Muffler assemblies and how this will allow Meritor to improve their Triple Bottom Line