Below is a link to a great article about the 15 traits of the ideal employee.  Candidates need to review these and come up with a pre-planned answer or example on how you meet these traits.  Hiring managers may want to think about how to question candidates to see how they meet the traits.

http://www.forbes.com/sites/kensundheim/2013/04/02/15-traits-of-the-ideal-employee/