Final answer:
Having a single, unified functional strategy is not considered a weakness in SWOT analysis; it's often a strength since a focused strategy can lead to greater success.
Step-by-step explanation:
In doing a SWOT analysis, an example of a potential resource weakness or competitive deficiency that a company may have is having a single, unified functional strategy instead of several distinct functional strategies. This is not considered a weakness. A focused strategy on one or a few products, known as a company's "core competency," is often more successful than attempting to offer a wide range of products. However, other options such as less productive R & D efforts than rivals (A), a lack of a strong brand image and reputation (C), higher overall unit costs relative to rivals (D), and too narrow a product line relative to rivals (E) represent potential weaknesses or competitive deficiencies.