Morgan Stanley 's new chief executive , John J. Mack , announced last month that Walid Chammah would head investment banking , succeeding Mr. Uva and Mr. Spencer .
John J. Mack
Morgan Stanley
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Walid Chammah
Morgan Stanley
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PERSON
Morgan Stanley
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John J. Mack
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Walid Chammah
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Uva
PERSON
Spencer