This document summarizes a research paper about organizational ambidexterity and how it allowed IBM to adapt and grow between 2000-2005. It provides context on evolutionary theory and the debate between those who believe organizations are inherently inert versus those who believe organizations can adapt. Recent advances in evolutionary thinking show how adaptation can occur at both the individual and group level through natural selection and cultural learning/selection. This framework reconciles the two perspectives by showing how organizations can remain stable yet also change over time in response to their environment through exploration and exploitation. The document uses IBM's Emerging Business Organization process as an example of how a large company has remained adaptive through deliberate multi-level selection processes.