Final answer:
The article posits that the knowledge of key decisionmakers is the only sustainable source of competitive advantage for firms, emphasizing the need for innovative business practices and core competency to obtain above-normal profits and maintain market edge.
Step-by-step explanation:
According to the article, the only sustainable source of competitive advantage in any firm is the knowledge of key decisionmakers. This perspective on competitive advantage highlights the importance of innovation and the relentless pursuit of new technologies and improvements as essential to business success.
As illustrated by Gregory Lee, the CEO of Samsung, firms can create a temporary edge in the market and achieve above-normal profits through innovative practices before competitors have the opportunity to catch up.
Additionally, the concept of core competency suggests that businesses may find success in focusing on a select range of products or services rather than diversifying too broadly.