SD R has it exactly right. The big boys could see this might be coming, and are now (a) seeing if they can re-inflate, or (b) if they can’t get re-inflation going, draw the downturn out as long as possible, to make it easier to bail out the bankers and others who play ball (play ball with Barney = ask “how much do you want?” when he says “lend!”)
I don’t think all the top people were 100% sure that the market would collapse, SD R. I think they realized it could, but many also believed it could be averted with the “right” actions. They are a little surprised at the speed and extent of the downturn. If they had seen this coming, Ben would have flooded the markets with cheap and easy money earlier.