Advanced marketing: One difference of opinion with respect to sales concerns the potential impact of training versus selection in developing an effective sales force. Some observers maintain that the best salespeople are born that way and are effective due to their personalities and all the interpersonal skills they have developed over a lifetime. Others contend that application of leading-edge sales techniques can make virtually anyone a sales star.

Take a position: The key to developing an effective sales force is selection versus the key to developing an effective sales force is training.