I agree... mostly

Romney's clear problem is his inability to win over conservatives. Romney-care hangs around his neck like an Albatross. His only logical choice is Santorum. However, I'm less sure that Santorum would pick Romney. There's certainly precedent - G.H. Bush was the "moderate" that lost to the vastly more conservative Reagan, and Reagan unified the party by picking his middle of the road rival. However, Bush didn't have Romnay-care, and I don't know that Santourum would want to immediately take the Obamacare chip off the table by making as his VP a man whom supported the individual mandate as recently as 2009 (on Meet The Press). Romney-care is a real problem, make no mistake.

That worry is second only to the following concern: Ron Paul could stay in this race until the convention and then walk into the Libertarian nomination. He would utterly destroy the GOP's presidential chances, so you might ask why he would do such a thing and guarantee an Obama victory? Keep in mind - Paul sees no real difference between Romney (assuming he wins) and Obama. The daylight is insignificant in his view. And as he's nearing retirement he may decide that this will be the way he goes out - teaching the GOP a lesson about the error of its' ways. There's only three ways the GOP guarantees this does not happen. One is Rand Paul. They can promise to destroy his son's very promising career. Two is also Rand Paul - make Rand the VP choice (which would please the likes of me). Or (and this is the option I would prefer, regardless of who wins), they can promise Ron the Secretary of Treasury gig. This way he gets a crack at his long time nemesis - the Federal Reserve. That he I doubt he could resist.