Playing Craps with $700 billion?

A couple of months ago, Henry Paulson and Ben Bernanke went to Congress with a plan to buy up bad mortgages. Then the plan changed and became purchasing stock in banks.

Now, Secretary Paulson is announcing an entirely different plan. The Secretary says that the facts have changed, but one can be excused for having the growing concern that he just doesn't know what the heck he's doing. Are we just rolling the dice and seeing if it comes up 7?