Focus
A person with focus is internally driven to accomplish goals and can stay attentive to one topic. Focused individuals are more demanding of themselves than other people and they are self-motivated. They are able to organize themselves and recognize what needs to be done in order to achieve their goals.
In a salesperson, focus produces best results when it is balanced with empathy. You then see a person who listens and identifies with the customer while keeping focused on set goals, and who is able to translate these goals into solutions for the customer.