Given the unwillingness of so called "moderate Republicans" to back up their chatter with any votes or a signature on a discharge petition, this seems beyond the realm of possibility but here goes:
What if enough Republian members of Congress were wiling to leave the Republican conference and announce that they would caucus with the Democratic members of the House. Could Boehner be deposed quickly and the rule of the Teaparty via the Hastert rule be ended? There would certainly have to be some quid pro quo with those Republican members who caucus with the Dem's about what kind of challenger they would face in 2014.
If this were possible, it might not be desirable since the best possibility for retaking the House in 2014 would seem to lie with in defeating Republicans in those "moderate districts.