It seemed perfectly sensible. We nodded in approval at the consultants. Great! We have a real schedule! We might actually pull this off! Until we realized that: Nobody can accurately estimate their time or all the steps they’ll need to perform. Trying to get into that much detail that far out is useless. Something will always spoil your plan. We were spending all our time scheduling, arguing over what could and couldn’t be done in a half day, and it was impossible to see the whole forest through the half trees.
