The secret to success is to know when when it's safe to steer your boss off a cliff. Enthusiastically support his worst ideas with plenty of documentation that he can take personal credit for without bothering to read. Then enjoy the fireworks as he squats and dumps the whole mess on his boss's desk. Cost overrun and budget trashing are above my pay grade so how could I know it was wrong without being properly instructed and given stuff to sign to prove that.