HDD and HDK would bargain hard. Even harder than what they bargained with Dharam Singh. It will be a night-mare for Yediyurappa to handle HDD. HDD didn't allow Dharam Singh to wake-up and do anything positive, thereby ensuring that Congress looses face/credibility with People of Karnataka. Hats off to the idiotic thinking of HDD, which hampered progress, when they supported the government.
Its the pressure from MLAs, which has forced HDD/HDK combine to bend in front of BJP. MLAs at the best can be Minister, and they will remain minister, it doesn't matter who is the CM. Politics at its dirtiest possible level. Sometimes it makes me think that its better to be not in Democracy, where such mockery of system happens.