Obama doesn't make a single bit of difference being the president. However, all the people he chooses for his staff makes all the difference. It's like running a store, you might have an amazing manager running the place but if you've got a guy working the till who can't push a button then all the managerial magic is useless.

Obama might be human gold with a soft diamondy center, but unless he actually has people who can do what needs to be done then it's useless. I think it's highly illustrated by the McCain campaign that he didn't have subordinates capable of doing the job right because he looked as warn out and tired as Bush does currently. McCain looked physically flabbergasted by what he was asked, he'd have looked better just holding up the frigging piece of paper his speech writers gave him.