President Obama’s Cabinet is the public face of the administration, but the White House staff runs the world, says Gettysburg College authority Shirley Anne Warshaw.

Warshaw, professor of political science at Gettysburg, and an expert on the American presidency, the Cabinet and the president’s policy-making organizational decision structures, is a frequent speaker on National Public Radio, guest columnist, and commentator on radio and television.

Warshaw can discuss:• How Obama’s stable Cabinet will experience a significant turnover, and the viability of various Cabinet candidates being discussed, including Rice, Brennan, Lew, Kerry, etc.• How numerous senior staff of the White House moved over to Obama’s campaign, and are not returning. That they may be replaced by young, junior people at the White House may provide a golden opportunity for Cabinet members to exert more influence over policy.• The volatility of the State and Defense posts as they battle for control of foreign policy. Will a new Secretary of State or Defense dominate the foreign policy process? How will a new CIA director fit into the mix?• How Obama will build geographic, ethnic and other kinds of diversity into his Cabinet and White House staff, but how his silence on his second-term agenda is making it more difficult to choose appropriate people.

Warshaw has written ten books on the presidency, most recently "The Co-Presidency of Bush and Cheney." She served on the 2000 and 2008 Pew Transition Projects for structuring White House staff.