Agile methods create conflict. So to retain agility, we must actively promote it even after agile has taken hold. How can we equip a company with the cultural and process tools to sustain agility? Your choices may depend on your perspective. Social psychologists teach organizations to reinvent themselves, but this approach may be too slow for a large company. Change agents study, develop and evangelize specific processes, a more promising approach. “Adaptive portfolio management” is a specific process under development that may help sustain agile-thinking. It maximizes value by rapidly adapting to market and company changes. In using adaptive portfolio management, company leaders exercise agile fundamentals. They can become agile advocates for the whole organization, making agility more stable for developers on the ground.