I disagree. Sometimes a task requires more time than someone with no knowledge of the system would expect; sometimes it can take much less. I always thought tha

I disagree. Sometimes a task requires more time than someone with no knowledge of the system would expect; sometimes it can take much less. I always thought that a big part of my job is to make tomorrow's changes less expensive than today's. If things are constantly costing more than expected, there is a problem.