“Where simplifications fail, causing most damage, is when something nonlinear is simplified with the linear as a substitute.” (from the book - http://www.amazon.com/Antifragile-Things-That-Disorder-Incerto/dp/0812979680)
That’s why project management, scientific management, planning 5 years ahead and similar things should be used as a tool at maximum, not way of thinking. Thinking should be based on principles (e.g. 12 principles of new organization), which are reviewed based on the current context.