If Livni had given up her demand for prime minsterial rotation, this could have happened. Thus her putting the blame on Netanyahu doesn't work. Kadima was never cut out to be an effective opposition party, but a party of actualizing reform for the Middle Israeli, which could only be done within the government. Get ready for deepening right left polarization throughout the world which is already making Kadima's centrist ethos irrelevant.
Colombia recalls ambassador to Venezuela amid border crisis (Reuters)
from the article: Livni to Haaretz: Likud and Kadima must join forces for peace