This document provides a summary of the case study "Waking Up IBM: How a Gang of Unlikely Rebels Transformed Big Blue". It describes how in the early 1990s, IBM was struggling against competitors and faced potential break up. David Grossman recognized the potential of the internet and tried to convince IBM executives. He teamed up with John Patrick to promote internet usage at IBM. Their "Get Connected" manifesto outlined ways IBM could leverage the web. After successful internet projects, IBM restructured to a more flexible matrix structure and the organizational culture changed to be more collaborative and innovative. Effective communication was key to Grossman and Patrick's success in transforming IBM.