When Kyndryl spun out of IBM, it seized an opportunity to reinvent its culture, operations, and foundations, including its core applications and systems. Through united leadership, committed executive, manager, and employee involvement, and a persistent and iterative approach, Kyndryl used its modernization and migration as a catalyst for cultural change to be more innovative and agile while reducing its portfolio from 1,829 to 360 applications, saving 50% in IT run costs. This integrated reinvention establishes a strong foundation for the AI era. Every technology leader can learn from Kyndryl’s approach.