Peter Orszag will become the first member of President Obama’s cabinet to leave:

White House budget director Peter Orszag plans to leave government in July, becoming the first member of President Barack Obama’s Cabinet to depart, administration officials said Monday. Orszag is likely to join a think tank, colleagues said.

Presidential advisers say a possible successor as director of the Office of Management and Budget is Rob Nabors, who was Orszag’s deputy and went over to the Chief of Staff’s office to be a senior adviser to Rahm Emanuel. Nabors now he attends the 7:30 a.m. senior staff meeting and insiders say his stock never dropped, but only gained in value.

Two other possible replacements each served as chief economic adviser to President Bill Clinton: Laura D’Andrea Tyson of the University of California at Berkeley, named by Obama as a member of the President’s Economic Recovery Advisory Board; and Gene Sperling, now a counselor to Treasury Secretary Tim Geithner. 

What we really need is a new thinker in there – someone along the lines of a Paul Krugman. Everyone agrees that things like the stimulus was never enough, and the President never pushed for more. He needs advisers that will push him to really get this economy under control.