It's often difficult to talk about a failure or shortcoming in a job interview . But that's exactly what Sandra Oliver wants from candidates. Oliver, who is global assurance talent leader at accounting firm EY, tells CNBC Make It she likes to ask candidates to give an example of a goal they set for themselves and how they achieved it, as well as one goal they didn't achieve. "That's the way I like to start the interviews, to see how people think about themselves," she says. "People don't like