When Gretchen Neels, a Boston-based consultant, was coaching a group of college students for job interviews, she asked them how they believe employers view them. She gave them a clue, telling them that the word she was looking for begins with the letter "e." One young man shouted out, "excellent." Other students chimed in with "enthusiastic" and "energetic." Not even close. The correct answer, she said, is "entitled." "Huh?" the students responded, surprised and even hurt to think that managers are offended by their highfalutin opinions of themselves. If there is one overriding perception of the millennial generation, it's that...