Partner, McKinsey & Co.'s public sector practice
Rank change: New
The brainy Braverman has the ear of the top dogs at U.S. government agencies and departments, whom he helps with issues like setting strategy and efficiency. (He acted as an adviser to the Obama-Biden transition project.) He also created McKinsey's post-disaster response model and travels several times a month to Haiti, where with the Haitian government and the Clinton Foundation he helped establish the country's reconstruction agency.
Other talents: He was in the National Spelling Bee in 1986 and 1987, and at Yale was a member of the Whiffenpoofs a cappella troupe.
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Last updated October 14 2010: 1:25 PM ET