For the Republicans in 2014 there just isn't much low-hanging fruit in the Senate to be picked off. Montana, South Dakota, and West Virginia may offer excellent opportunities for Republican pick-ups in the Senate... but let's put it this way: Mary Landrieu is far safer a bet for re-election than Mitch McConnell, the Senate Minority Leader. The open seat in Georgia doesn't look so great for Republicans, either.
You make it seem as if the Republicans may blow their chances at the senate for the foreseeable future unless they have Morning in America v2.0 in 2016.