Washington ? President Barack Obama says treasury secretary is one job that’s not up for grabs.

In an interview with CBS’ “60 Minutes” Obama said that if Treasury chief Timothy Geithner offered his resignation, the answer would be, “Sorry buddy, you’ve still got the job.”

Obama also took the opportunity to strike back at recent comments by former Vice President Dick Cheney, who claimed that plans to close the Guantanamo Bay detention center will make the U.S. less safe.

Obama contended that the Bush administration’s policy of holding detainees for years on end with no trials is “unsustainable,” and has only fueled anti-American sentiments. At the same time, Obama said that U.S. authorities haven’t done a good job determining who should be released from the Navy base in Cuba.

On Geithner, Obama reiterated his support for the beleaguered secretary who has been roundly criticized over the recent corporate bonus flap and steps to revive the economy. And he urged patience.

“It’s going to take a little bit more time than we would like to make sure that we get this plan just right. Of course, then we’d still be subject to criticism,” he said in the interview, taped Friday and set to air this evening. “What’s taken so long? You’ve been in office a whole 40 days and you haven’t solved the greatest financial crisis since the Great Depression.”