Brian has been recently promoted to the position of CEO at a large company that produces a wide variety of consumer goods. Brian formerly served as the Vice President of Sales at this same company. At his sales​ position, Brian observed that successful employees tended to have an optimistic disposition. They were not often critical and tended to view even challenging circumstances in a positive way. In the previous​ position, Brian tried to hire and promote people who have this disposition. As​ CEO, he plans to use the same approach across the company. Since the personality traits of the​ company's employees have never before been​ measured, Brian's first step will be to administer a personality test to all employees. After​ that, all hiring and promotion decisions will need to take the​ employee's disposition into account. Which of the following is assumed by​ Brian's plan? a. The employees who are in leadership positions across the company are likely to have optimistic dispositions.
b. No other personality traits are likely to lead to success at the company.
c. Personality traits that are associated with success in one situation are likely to lead to success in other situations.
d. Every successful employee in the Sales Department has an optimistic disposition.
e. Efforts to reward people with specific personality types will not be met with much opposition from those with different personality types.