Along with heading the project, they also are expected to coach, develop and advise other managers so the entire company can achieve this goal. Black belts should be able to leads problem-solving projects, but also be able to train and coach project teams.Our six sigma lean black belt course are for people who are in charge of the six sigma Projects within their respective companies. Most of the time, black belt graduates are the people who are asked to take on projects on a full-time basis.