Lean Six Sigma is a comprehensive and flexible system for achieving, sustaining and maximising organisational success. Lean Six Sigma Green Belts are specialists in executing Lean Six Sigma projects. With the right combination of specialist expertise, statistical analysis and structured Lean Six Sigma methodology, the Green Belt is able to achieve significant improvements in performance and quality. A Green Belt might work alone or as a junior project manager in a team or as a team member in larger Black Belt project.