After the 2014 election, the top priority needs to be the organisation of a new Party and the wooing of conservative standard-bearers to it. Let the GOP go the way of the Whigs.
There are like 50 3rd parties already, just join one. As long as you know voting for one of them is like flushing your ballot down the toilet.
The article is nonsense anyway. It is true that some of the Tea Party candidates for statewide office were defeated by more establishment/mainstream options in the primaries, but the Tea Party still makes a huge difference in pushing the party to the right and forcing Republicans in a more conservative direction. This is especially true on a local level, and those local Tea Party winners gain experience and will go on to be better statewide candidates down the road.
It is pretty safe to just ignore all the "Tea Party is dead" stories. This stuff is just wishful thinking by much of the national media.