What are the pros and cons associated with using internal sources of job candidates?

Please answer ONE of the following: 1. What are the pros and cons associated with using internal sources of job candidates? What are the pros and cons of using Internet recruiting to locate external sources of job candidates? 2. Industrial psychologists often emphasize the “big ve” personality dimensions in personnel testing. List and explain the meaning of the big ve dimensions. How do personality traits correlate with job performance? 3. What are some common errors that managers make during interviews? How can managers conduct an effective interview?