Answer: True.
Step-by-step explanation:
It has been shown that employees with a broad skill set can make a company more efficient than employees that focus on a single task.
This is because it is believed that they can integrate those skills to create better solutions and opportunities.
Relating this to job descriptions, companies have found then that giving employees a broad definition of job requirements enabled them to think outside the box and give more complete solutions which are innovative and full of quality.
For example, Financial Analysts might just trade normal stocks and bonds as they are supposed to but then if the company gives a broader definition of products required, you see these same analysts moving into Computerized Quantitative Analysis, Derivatives and the like.