Cultural change requires understanding the company, commitment from everyone in the organization, and identification of proper improvement tools. It is important to be consistant when applying the improvement project as there is a large investment in money, knowledge, and time. Some companies just abandon the projects in a short time because they don't see the benefits coming in a short period, but the outcomes will derive from a correct implementation of the business tools. Phillips is a company which reached excellence by materializing its quality concept into its own new model, the Phillips excellence model, and the company applies this framework in all its subsidiaries.
Changing the culture of the organization is a difficult task, as the current culture has been formed over years of interaction. People are comfortable with the old culture, and changing their minds and way of working will be a whole challenge.