Sometimes teams believe that even with the best knowledge of what the schedule will really be, their management is so draconian, so unenlightened, so evil, that the process can't possibly work.
Well, if it's really that bad, I'd advise you to hit the silk.
 This is a reference to bailing out of an airplane. Used back when Jeffries was a boy.
But more likely, management has been lied to, misled, bamboozled, and spun so many times that they have come to believe that nothing works but pressure.
Give the process a chance. Most managers really are more than ready to use accurate information to make better decisions. Every time you do this process, your knowledge of what will happen improves. If every time you report, you ...