Geithner's a geek whose being told what positions to support. But like all geeks, he doesn't have the acting chops to really get his heart behind what he's told to say. A geek has a built-in repulsion to saying what's not true. That's why his performances are so lackluster.
For politicians, on the other hand, lying is standard operating procedure.
His finger gestures remind me of a crab, LOL. He’s always holding his right hand up, and pinching his thumb and forefinger together when he’s trying to make a point.