Love the photo of the White House dog, Bo, in the doorway. And I believe that's Obama's new budget director, Jacob Lew. I got it from Ezra Klien's Wonkbook at The Washington Post.
From the Post Who Runs Government site:
Widely respected by centrists and liberals alike, Lew was a well-received selection for deputy secretary of state by policy wonks for his competent work as director of the Office of Management and Budget (OMB) in the Clinton administration. In July 2010, President Obama tapped him to return to his old White House stomping grounds as the replacement for outgoing OMB Director Peter Orszag.
Bo got big. And he has a blog.