NetApp last month shook up its management team with several high-profile moves, starting with the departure of Chairman and former CEO Dan Warmenhoven, a 20-year veteran and longtime leader of the storage firm. Warmenhoven will remain on NetApp's board of directors until September, when he plans to retire. He served as president and CEO of NetApp from 1994 to 2005, and then as CEO until 2009. Before joining NetApp, Warmenhoven served as chairman, CEO and president of Network Equipment Technologies. Prior to that, he served as general manager of HP's Information Networks group and also spent more than 10 years at IBM in a variety of management roles.