President Obama announced that Jay Carney is leaving his post as the public face of the administration, and will be succeeded by Josh Earnest as press secretary.

Carney told reporters in the White House briefing room that there is no date yet for his departure, but that he is “excited by some of the possibilities.”

Obama said in making the announcement that “Jay has been one of my closest friends and he’s a great press secretary, and a great adviser. He’s has good judgment, he’s got good temperament and he’s got a good heart.”

Carney came from Time magazine’s Washington bureau when he joined the administration in 2009, serving first as director of communications for Vice President Joseph Biden and later for the White House after Robert Gibbs stepped down in 2011.

His relationship with the press has at times been contentious, particularly over the issue of access to Obama.

Earnest worked with Obama in his first campaign for the presidency, serving as communications director for his Iowa campaign, and then joined the administration.

“He is a straight shooter and a great guy,” Obama said.