What do U.S. Special Ops, George Washington, Mao Tse-tung, and Oprah Winfrey all have in common? In addition to boldness, daring, and a never-say-die attitude, they are among the most successful practitioners of insurgency tactics -- tactics you need to succeed in the battle for the loyalty of today's consumers. Tap into the same opportunistic and aggressive energy used by successful underdogs …