The following appeared in a report presented for discussion at a meeting of the directors of a company that manufactures parts for heavy machinery:
"The falling revenues that the company is experiencing coincide with delays in manufacturing. These delays, in turn, are due in large part to poor planning in purchasing metals. Consider further that the manager of the department that handles purchasing of raw materials has an excellent background in general business, psychology, and sociology, but knows little about the properties of metals. The company should, therefore, move the purchasing manager to the sales department and bring in a scientist from the research division to be manager of the purchasing department."
MY AOA:
The falling revenues would be a concern for just about any industry; in the presented argument, the author tries to allot reasons for the declining revenues of a particular company and tries to convince the company’s Board of Directors to take a particular course of action to address the situation at hand. While the author’s claim may well have merit, the author presents a poorly reasoned argument, and based solely on the evidence provided by the author, we cannot accept his conclusion as valid.
The primary issue with the argument is the use of an unsubstantiated premises to build the argument. The author’s assumption that the drop in the revenue is due to delays in manufacturing forms the basis of the entire argument and yet it is not supported by any concrete evidence. The author makes a weak attempt to support this assumption by pointing the coincidence of the time frames of the occurrence of the two events. The author assumes the causal relationship between the two events only on the basis of this observation without considering other possibilities. For instance, it is possible that the revenues are dropping due increased competition and has little to do with the delays in manufacturing.
Second, the author assumes that knowledge about the properties of material is the single most factor in proper planning for purchasing raw materials for the company. Based on this assumption, the author suggests that the procurement manager be replaced by a researcher. Though the knowledge about the properties of materials might be important for raw material procurement, it also requires certain amount of vendor management and relationship building with the supplier. Most managers will have more developed interpersonal skills and people management skills required for such a task than a researcher. Further, the manager may be assisted by an employee with the required technical knowledge or may be imparted training so that he can acquire such knowledge.
Third, the author does not talk about the availability of scientists or the interest of scientists in undergoing a shift in career. The scientists with the necessary knowledge might not be interested and even resist such a drastic career change. Besides, the scientists might be caught up with some important research for the company.
In sum, the author’s argument is based on unsupported premises and unsubstantiated assumptions and as a result the argument may not convince the Board of Directors. If the author truly hopes to change his readers' minds on the issue, he would have to largely restructure his argument, fix the flaws in his logic, clearly explicate his assumptions, and provide evidentiary support. Without these things, his poorly reasoned argument will likely convince few people.