The sources said Pruitt's decision to put Greenwalt in
charge of his international travel, which came just months into his
tenure at EPA, fit a pattern of Pruitt assigning the most sensitive responsibilities to his small cadre of aides who had previously worked with him in Oklahoma before he became EPA administrator — aides who sources said were more likely to acquiesce to his
demands, even as other EPA staffers objected to Pruitt's spending and travel decisions.
During her
tenure, she was in
charge of all business and marketing decisions, from product definition and stewardship to government and stakeholder relations, and from
demand creation and sales to customer understanding and professional development services for teachers.