The departure , coming soon after the decision by Raymond J. McGuire , the former co-head of mergers and acquisitions , to join Citigroup , underscores how vulnerable the firm 's blue-chip investment banking operations remain to overtures from rival banks -- especially commercial banks -- after the management shake-up by Philip J. Purcell , the firm 's chief executive .
Raymond J. McGuire /business/person/company Citigroup
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Raymond J. McGuire
PERSON
Citigroup
ORGANIZATION
/business/person/company