President Obama might look to an administration outsider to become his permanent chief of staff, a top adviser suggested Thursday.

Senior adviser Valerie Jarrett said the president would look to some "new faces" when filling vacant White House positions next year, including a permanent replacement for his departed chief of staff, Rahm Emanuel.

"I think that we certainly are looking for some new faces. Larry Summers left, Rahm left, there will probably be some new faces," Jarrett said on MSNBC.

Emanuel resigned in October to pursue a mayoral candidacy in Chicago. Most of the president's economic team left as well: National Economic Council Director Lawrence Summers resigned, as did Council of Economic Advisers Chairwoman Christina Romer and Office of Management and Budget Director Peter Orszag.

Senior adviser David Axelrod is also expected to leave the White House early next year to begin work on the president's reelection campaign.

"I think, as in any administration, after a couple of years for a variety of reasons, people move on and there's an opportunity to bring some new people in. And I think the president is interested in doing that," Jarrett said. "He's always interested in hearing outside voices."

David Plouffe, the president's political guru, is expected to join the administration. But the big announcement the president will make will be a permanent successor to Emanuel. Pete Rouse has served as interim chief of staff.

Jarrett said the public can expect to be "hearing from [Obama] directly after the first of the year" on staff changes.