MEMO IS A TIME BOMB By KEITH J. KELLY November 21, 2008 -- THE South is burning. A former top editor at Time Inc. fired off a scathing memo to Executive Vice President Sylvia Auton, the London-based head of the magazine giant's lifestyle group, criticizing her handling of the deep job cuts within her group. The letter was penned by Susan Haynes, a senior editor at Coastal Living from April 1998 to August 2007, who is now the senior acquisitions editor at Manasha Ridge Press. "I don't know what Time Inc.'s master plan is - or if you even have...