Tina Brown makes the somewhat counter-intuitive case here. Not quite sure I buy it, but the guy clearly had a good day yesterday. Here's Brown:

Even as Obama drops to a 59 percent approval rating from 64 percent last month and is starting to give his supporters little flutters of panic, Geithner’s geekiness has started to feel reassuringly authentic. The market—that testosterone-fueled imponderable—certainly loved his bank plan, and the beleaguered Treasury secretary is now being helped by the lowered expectations built up by his botched debut. Maybe thoughtful is OK after all! Maybe being a slight, quizzical infant prodigy is actually right for now—after all, chrome-domed Hank Paulson looked like a CEO is supposed to look, but he got it all wrong! He wasn’t a thinker! He didn’t understand financial markets! He was a salesman, not a strategist! When the market jumps by 500 points, Timid Timmy is suddenly Tiger Tim. (Especially when he unveils his plan without cameras.) ...

Of course, both of these revived reputations will help Obama keep his. Cuomo’s effectiveness in shaking down the bonuses helps to go a small way to lance the boil of vindictive outrage that is clouding serious political decisions, while Geithner’s comeback vindicates the president’s patience and belief in him.

--Noam Scheiber