Petraeus to the rescue?

The Post has a story about Lt. Gen. David Petraeus, who is to be the next US commander in Iraq. From the article's description, he sounds like a pretty hardcore guy, doubtlessly necessary at this stage in the war. His work on the counterinsurgency manual is also promising, given the difficulty thus far that US forces have had in quelling the insurrection there. But the Post also alludes to criticism of Petraeus by others in the military, and says that he supports the troop surge idea. Anybody know what the deal is, and whether we should expect more from this general than those who led our failed Iraq endeavor in the past?