what does winning entail in such an unconventional conflict?
This theory has, to some extent, already proven true in parts of Anbar Province. The problem is that there is no well to turn this theory into consistent policy.
Right. I haven't the sligtest idea what "victory in Iraq" means. Does it mean that the Sunnis and Shiites stop hating each other? If so, lots of luck.
Good question. I say winning = maintaing the power of the elected government. After all, that is why we have support military in country, at said government's request, under a UN mandate. So winning = the government doesn't fall.
In which case, we're winning and the only way we can lose is if the government falls, which is really only possible if we exit precipitously because we all convince ourselves we're "losing".