Clearly no one taught them the Scotty principle. 1) Caluculate average required time for completion of given task. 2) Depending on importance of task, add 25-50% additional time to original estimate. 3) Report and commit to inflated time estimate with superiors, clients, etc. 4) Under optimal conditions the task is completed closer to the original time estimate vs. the inflated delivery time expected by those waiting.
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