Achieving lean structures and principles in a company means taking care that a cultural change takes place through all the parties everyone, including the leaders and employees, should be convinced that it is sensible, necessary and the correct thing to establish Lean. Lean should not be considered to be a foreign object in an environment where old habits persist. Cultural changes can be brought when thoughts about Lean are internalized by the people in the company, which become a part of the corporate philosophy. This article shows which measures the decision makers in management can take to develop Lean and make it an everyday practice.