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The next is well-accepted by now, although many IT organizations still ignore it: Projects should be short. No matter what you’re trying to accomplish, no planning project should be longer than two months; no implementation project should exceed six. This doesn’t limit the scope of your overall goals — it merely dictates how you go about achieving them. At the risk of over-using military planning as a guide to business planning, military strategy can have a lifespan of years, but each mission must be crisp and brief.