All this underscores the need for qualified employees. Engineers and economists must have a good command of methods applied in logistics, planning & control, and ultimately logistics software. Thorough understanding of these methods will allow them to make competent decisions and, if required, to design the necessary software. Qualified employees are also less susceptible to the polarizing propaganda of proponents of certain methods or logistics software sales representatives. The knowledge that qualified employees possess will also supply them with the necessary factual arguments if faced with the polemics of sales and finance departments, and they will be able to make logistics improvements transparent as well as to justify clearly the remaining lead times and costs.