I just found this.
Ray LaHood becomes the latest member of President Obama's cabinet to say they are leaving as the president begins his second term.

LaHood announced today he will leave his post as secretary of the Department of Transportation once a successor is confirmed by the U.S. Senate.

"As I look back on the past four years, I am proud of what we have accomplished together in so many important areas," LaHood said in a statement.
Here's the link. http://firstread.nbcnews.com/_news/2...portation?lite