Donald VandergriffMajor Donald Vandergriff (U.S. Army retired) is a consultant on leader development, adaptability, and how to create and sustain learning organizations to the U.S. Army. The U.S. Marines and Navy SEALs, as well as several corporate organization, have sought his insights on adaptability. He is the author of 50 articles, as well as three books. Read More Read Less
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