Having read this earlier today:
Bush may make Petraeus his ‘fall guy.’
President Bush has mentioned Gen. David Petraeus “at least 150 times this year in his speeches, interviews and news conferences.” But some in the military worry that “the general is being set up by the Bush administration as a scapegoat if conditions in Iraq fail to improve. ‘The danger is that Petraeus will now be painted as failing to live up to expectations and become the fall guy for the administration,’ one retired four-star officer said.”
I was all revved up to point out how Commander Codpiece has an unpleasant history of exactly this sort of thing. Sadly, Dan Froomkin beat me to it.