My theory is if they can prop up a different candidate in each of the early primaries to siphon enough votes from Paul, it will allow them enough time to convince the remaining uninformed/undecided that indeed Mitt should be the inevitable choice.
Iowa - Santorum spends all his efforts there
NH - Huntsman, spends all his efforts there
SC - amazingly Perry comes back and says on to SC, likely to be soon propped up by the MSM into 3rd place for SC after going "all-in" in SC.
Florida and beyond- where the house of cards crumble IMO
There is easily 30% of the vote being shifted to the "others" instead of the main 2 players.