Lean manufacturing system which can be simply called "More Value with Less Work" can change any existing manufacturing facility into a great profitable business. It is one of great dream @ every level of employees and shareholders.
But it is not a dream which will realize in one night. Lean must be implemented very carefully and it must cover up all sections and all levels of organization. High level of change management is need because every where "Resistance to Change" is available.
I am working in a factory where Lean is being implemented. I have involved with many lean projects in our company and I have experienced the Resistance and ways to overcome it. Lean implementers must be aware with factors which lead for failures in lean system.
Implementing lean requires corporate culture change starting from grass root level of hierarchy. I think people mind set is the key object which need to change in implementation process.