Do you find it difficult to hire great people? Maybe you know something is wrong, but you don't know what. Maybe you don't feel "chemistry" with the candidate. You can hire for cultural fit, and eliminate that icky feeling or the lack of chemistry.
You need to understand your corporate culture, and your culture as a hiring manager. You can then develop great interview questions and auditions to reflect your culture to see if a candidate will fit. Learn how to think about interview questions to use cultural fit to your advantage, instead of discarding candidates for that uneasy feeling.