Some people on the left are alarmed that Treasury Sec Timothy Geithner is leading negotiations to deal with the Fiscal Cliff (or the Fiscal Bunny Slope) being held between the Obama administration and the Congress. Okay, he wouldn't be my pick, but he does have the expertise and the staff to deal with it.
Let's clear up a couple of things, Geithner never worked for a Wall Street bank. He was Governor of the NY Fed, which is largely responsible for riding herd on the the Wall Street banks, but that business was completely out of control before he got the job.
Now this doesn't prove anything one way or another, but Geithner was simultaneously on the board of the Bank of International Settlements (BIS). It was this body that pulled the plug on the Wall Street banks transferring money between banks in 2008 over their involvement in the selling of a quadrillion dollars ($1,000,000,000,000,000) worth of un-backed derivatives. This effectively froze the US banking system overnight.