Managers often form a [programming] team which by any reasonable judgment cannot perform the designated task in the allotted time. Inevitably the team is given an extension when the time limit is reached and the reality must be faced. Had it been faced earlier, the work could probably have been organized differently - in recognition of the longer schedule - and thus produced, in the end, more quickly.

The Psychology of Computer Programming: Silver Anniversary Edition by Gerald M. Weinberg

ISBN: 0932633420 Page: 68, Chapter 5 This book is available from Amazon