The simplest way to think about a strong culture is that it is highly ordered. To be highly ordered, a culture must be clearly designed to support the key activities and behaviors thought to be necessary for success. It also must be coherent i.e. all HR and administrative approaches must be consistent with and reinforce the desired behaviors. Basic physics teaches that the natural state or lowest energy state of the universe is maximum disorder and to create and maintain an ordered system, energy must be expended. In an organization, energy tends to come from energetic, enthusiastic positive members of the team. Such people are of extraordinary value and a strong leader knows who they are and uses them to energize the organization. During challenging times, leaders must invest more energy into the organization, and it must be consistent with the desired culture.