Top management plays a key role in defining an organization's mission, goals, and strategies. They must consider both external factors like opportunities/threats and internal factors like strengths/weaknesses. The organization's design, including its structure and systems, should support its competitive strategy and allow it to effectively achieve its goals. There are various frameworks for analyzing an organization's strategy, structure, and effectiveness, including Porter's competitive strategies, Miles and Snow's strategy typology, and Quinn and Rohrbaugh's competing values model.