Lee Sachs, a close adviser to Tim Geithner at the Treasury Department, announced his plans to leave the public sector "in the next couple of months." The move signals a shift in the Obama administration's focus as it moves out of a period focused on emergency economic response, according to Bloomberg. Sachs was a managing director at Bear Stearns before he was brought aboard by Geithner. Sachs and Geithner do triathlons together. Sachs says Geithner is fast.