To be sure , Morgan Stanley , like all investment banks , has survived high-level departures before : Robert F. Greenhill in 1993 , Frank P. Quattrone in 1996 and John J. Mack in 2001 , to name just a few .
John J. Mack /business/person/company Morgan Stanley
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John J. Mack
PERSON
Morgan Stanley
PERSON
/business/person/company