The mantra "Hire Slow and Fire Quickly" has been a favourite of business writers for years. However, an increasing number of thinkers are disagreeing with its sentiment. Danny Boce from Fast Company recently wrote "that catchphrase isn't just dumb, it's counterproductive," particularly for start-ups.
According to Susan J. Herman, author of Hiring Right, A Practical Guide, the interview is the most frequently used selection tool and the least valid and reliable. Validity is the degree to which a selection tool like testing or interviewing measures what it is supposed to measure. The closer a statistic is to 1, the more valid it is. Yet interviews have an average validity of 0.14 while ability testing has an average validity of 0.53.