Which of the Following Statements About Outside Training Specialists Are

Which of the following statements about outside training specialists are incorrect?

A) these specialists also help large companies by implementing refresher training programs and special-purpose sessions
B) outside training specialists offer flexibility because they can conduct the entire training program or handle only the particular part a firm needs the most
C) the outside trainer does not need to understand the company's sales problems, terminology, and sales cycle because as experts they can solve all the firm's problems
D) because their livelihood depends on their clients' satisfaction, outside trainers usually are knowledgeable, interesting, and inspiring in conducting sales training