The plan for moving toward more electronic trading on the exchange has been championed by John Thain , a former president of Goldman Sachs , who is the chief executive of the exchange .
John Thain /business/person/company Goldman Sachs
DT NN IN VBG IN RBR JJ NN IN DT NN VBZ VBN VBN IN NNP NNP , DT JJ NN IN NNP NNP , WP VBZ DT JJ NN IN DT NN .
John Thain
PERSON
Goldman Sachs
ORGANIZATION
/business/person/company