You get a bunch of "yes men" together and group think takes over and you end up with this. Rationality goes out the window. It has to because you have to say, "yes".
In my experience working, my theory is the over emphasis of goal setting. Everyone has to be doing something, even if it is counterproductive. No one ever says, maybe take some time to sit back to take some time to think about the best way to approach something, it's always just do do do.