Under Sanford I. Weill , Citigroup 's former chairman , big acquisitions fueled the company 's growth .
Citigroup /business/company/advisors Sanford I. Weill
IN NNP NNP NNP , NNP POS JJ NN , JJ NNS VBD DT NN POS NN .
Citigroup
ORGANIZATION
Sanford I. Weill
PERSON
/business/company/advisors