Time Inc. CEO Jack Griffin was recently ousted after less than six months on the job. An agent of change within the organization, his approach to overhauling the ailing media organization clearly didn't mesh with what his organization was ready for. Griffin's demise reminds me of the stellar job Louis Gerstner did when faced with a struggling IBM in the early 1990's. One of the greatest examples of a change agent succeeding, Gerstner was responsible for changing the entire direction of an organization that until he took over was looking to break up its business into smaller units and dissolve others. Today, IBM is a singular technology services powerhouse thanks to Gerstner's strategic vision and ability to guide the company through a massive change in culture.