Treasury Secretary Timothy Geithner - the sole remaining member of President Obama's original economic team - said today he expected to leave the administration if Obama wins a second term.

"He's not going to ask me to stay on, I'm pretty confident," Geithner, 50, said in an interview with Bloomberg TV in Charlotte, N.C.

"I'm confident he'll be president. But I'm also confident he's going to have the privilege of having another secretary of the Treasury."

Geithner had been  thinking about  leaving his Treasury post ever since the bruising debt ceiling debate last summer, sources told ABC News, but ultimately chose to remain by Obama's side through the end of the year.

Geithner's departure would mark the final step in the changing of the administration's economic guard, following the exits of National Economic Council Director Larry Summers, Council of Economic Advisers Chairwomsn  Christina Romer and Office of Management and Budget Director Peter Orsazg.

When asked what he might do next, Geithner simply  told Bloomberg  "something else."

The secretary will attend the World Economic Forum in Davos, Switzerland, this weekend, where the focus will be on keeping the euro zone afloat and staving off a global recession.