I suspect you are right, though it would be even more fun if SCOTUS were to strike down the mandate and leave the rest.
Can you imagine the board rooms at BC/BS, Humana, Wellpoint, et. al the morning after realizing that their dream of 50 million new customers at gunpoint was gone, but they were getting stuck with the rest of the crap sandwich?
They’d turn on their former ally faster than an Afghan sentry! Obama would be pounded to a bloody pulp by the time they got done running attack ads against him.
Would be wonderfully fun to watch anyway.
Actually, I believe the government plan would be to offer cooperative executives high, well-paying positions in a new government agency in charge of health care. They would probably even improve on their fancy offices and perks.