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Getting his job as president of Morgan Stanley had been a struggle, and Mack was there to stay. Years earlier, he had ousted former president Robert Greenhill in a palace coup while Greenhill was on the ski slopes entertaining clients. Greenhill had not been a pushover; his tightly knit group of loyalists had earned the nickname Branch Davidians. Nevertheless, after a bitter contest, Mack had won, and Greenhill’s group, like the Waco, Texas, cult, was out. Mack was a charismatic leader, charming as well as intimidating. One Morgan Stanley manager described him as “the best salesman I’ve ever seen.” He scheduled informal lunches with all of the lowest-level employees at Morgan Stanley, in groups. His office had two glass canisters filled with candies and a gumball machine, to encourage colleagues to stop by and chat. Mack was worshipped for his patriotic addresses to the firm as well as his inspiring locker-room pep talks. Even the most hard-hearted of Morgan Stanley’s managers were moved by Mack’s most stirring speeches. He had given many of them goosebumps, and even made a few cry. Mack seemed adept enough to resolve just about any conflict. When the trustees of socialite Doris Duke’s $1.2 billion estate needed someone to step in and settle the brawl over her estate, including accusations of murder, whom did they ask? John Mack.
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