Geithner's Consigliere

"Bearing the modest title of 'counselor,' [Lee Sachs] had no formal place in the Treasury hierarchy--meaning no confirmation hearings, no regular reports to Congress, no public profile. But he wielded enormous influence behind the scenes," writes Noam Scheiber.

There's no major disclosures in a Scheiber profile of Sachs, but obviously Sachs is a player that needs to be monitored.