Honestly I think the whole point of this is to try and get this to a no-majority situation so the House can elect Paul Ryan an establishment Republican to the Presidency.
I agree this might have been a credible longshot strategy back in, like, May, if they'd put forward a candidate with more than zero name recognition. I don't see how the Kristol/neocon faction could be so deluded to still believe they have any chance of doing that this late in the game. It's impossible to do anything except further torpedo Trump in dark red states. There's no scenario where this CIA guy would ever have a chance at flipping any blue state unless Hillary and Trump spend the first debate sharing a dead baby for a snack.