Oh, so I suppose your solution for 2016 is to nominate yet another squish moderate who loses.
My solution, and the only solution, for a Republican in 2016 is to convince about 3 million people that voted for Obama to vote for them. You can go about that in multiple ways, of course, but there's no other option.
Your solution is to motivate an almost entirely non-existent group of people (those for whom Romney wasn't conservative enough, and thus stayed home), which, if everything worked out, would likely have the effect of allowing the 2016 Republican candidate to win Mississippi by 20% instead of 18%.
I would like to nominate Allen West.
What makes ANYONE think that there will even be an election in 2016? The dice were thrown and the USA crapped out!