The document discusses why organizational culture is difficult to change. It argues that an organization and its culture are both environments that interact and influence each other. Modifying one has the potential to affect the other significantly. An organization's structures facilitate some behaviors and inhibit others, while a culture reinforces some intentions and resists others. The culture generally affects the organization more than the organization affects the culture. For an organization to change its culture, it needs to change the incentives and security it provides to key actors in order to encourage new behaviors and a recomposition of the organization that better achieves its mission.