The smartest person I know told me that the secret to business success does NOT necessarily involve hiring the right people. We just think it does. The real secret to success is firing the people that you discover to be the wrong fit until eventually you END UP with the right people. No one is psychic enough to do hiring right every time. Job applicants are good at misrepresenting themselves. But a good leader knows which employees to fire (or force resignation) and does it quickly and humanely.