What Fitzgerald said has been mischaracterized by many in the media and most defenders of Obama.
All involved have been very measured in their words except perhaps Blago himself who at this point isn’t talking anymore.
Fitzgerald said he wouldn’t speak to whether the president-elect was aware of anything, but stressed that there are no allegations that he was aware of anything. That is not the same as as saying Obama or his staff are free and clear. Obama himself has only said he did not talk with Blago. That is not the same as saying his proxies did not have any contact with Blago on his behalf.
If some Blago and his staff start talking to the Feds this could get pretty ugly for Obama and his staff.