Don't look for any big changes in President Barack Obama's Cabinet as the new year gets under way.

The president's press secretary, Robert Gibbs, tells CNN's "State of the Union" that he doesn't expect any major shuffling to take place in the Cabinet.

Gibbs says that there's much work yet to be done at the Treasury Department to implement financial reform and at the Health and Human Services Department to implement health care reform. He calls the president's team "very talented."

Obama's top economic adviser, Lawrence Summers, had been expected to depart the administration last fall. Gibbs says he thinks Obama will name Summers' replacement a week or two after the new Congress convenes.

CNN's interview with Gibbs aired Sunday.