Final answer:
It is false that companies believe one single 'sales type' can universally succeed in all sales situations. Companies understand the importance of different skills and approaches for different markets. Businesses focusing on core competencies tend to be more successful.
Step-by-step explanation:
The question of whether most companies believe that there is one single "sales type" who will be successful in selling anything to anybody is false. Businesses operate on the principle that different markets and products require different sales approaches and skills. Moreover, an understanding of a company's core competency is essential to achieving success in its particular market niche. The idea that one type of salesperson can be universally successful across all products and customers is a simplification that doesn't hold up in the complexity of modern markets.
Consequently, companies typically seek to hire salespeople who have specific skill sets, knowledge, and personalities that match their products, services, and target customer demographics. This is similar to how businesses that focus on a few products or services—their core competencies—tend to be more successful. A business's ability to cater to its unique customer base using specialized sales techniques is what often leads to a competitive edge.