What about the fact that, by his own admission, Mr. Geithner has never held a "real job"?  Doesn't that give you pause?

Not really, no-- for one thing, he said it tongue-in-cheek.  It's obvious that he has had very demanding jobs, and is under a lot of pressure and scrutiny. 

I disagree with you when you say that Geithner's never had to meet a deadline-- there was more than once during the financial crisis when Geithner, Paulson, and Bernanke had to put together a deal for a failing too-big-to-fail financial institution between market close on Friday and the opening of Asian markets on Sunday night.  That's a brand of pressure with which I am not personally familiar.