by Calculated Risk on 9/21/2010 06:50:00 PM

From the White House: Dr. Lawrence H. Summers, Director of the National Economic Council, to Return to Harvard University at the End of the Year

From Bloomberg: Summers to Leave White House After Election

From the NY Times: Top White House Economic Adviser to Depart

This is quite a turnover: Christina Romer, Peter Orszag, and now Lawrence Summers. I expect Treasury Secretary Timothy Geithner will stay on (just a guess) - and I have no idea who will replace Summers.