(CNN) - Ed Rendell isn't being bashful: he wants the top staff job in the White House.
The outgoing and always outspoken governor of Pennsylvania has told Bloomberg News that being chief of staff to President Obama is the "only" administration post he'd be interested in.
Still, Rendell - who supported Hillary Clinton over Obama during 2008 primaries and has at times been a vocal critic of the president - acknowledged he is among the least likely of politicians to get the powerful post vacated by Rahm Emanuel last week.
"If I were president, I am not sure that I would offer Ed Rendell the job of chief of staff," Rendell said on Bloomberg's "Political Capital" with Al Hunt. "I am a free spirit. I tell the truth and I like to mix it up. And that is not the Obama administration's modus operandi, to say the least."
Emanuel left the post after nearly two years on Friday to explore a mayoral bid in Chicago. Longtime Obama aide Pete Rouse has been named Emanuel's interim replacement.
Rendell, long known for his off-the-cuff remarks, has at times been a thorn in the White House's side. Last May, when Republican-turned-Democrat Arlen Specter was locked in a close - and ultimately unsuccessful - primary fight, Rendell said it was smart for Obama and Vice President Biden to stay away from the state "because their last minute appearances in New Jersey and Virginia and Massachusetts didn't serve too much good."
Democrats lost races for governor in New Jersey and Virginia last November; they also lost the January special election to fill Ted Kennedy's Senate seat in Massachusetts.
Rendell also criticized the president's appearance on a string of comedy and daytime talk shows, suggesting such moves are unpresidential.
"I think there should be a little bit of dignity to the presidency," he said in reference to an appearance Obama made on ABC's "The View" in July.