Most new managers try to "fix" every poor performer. This is part ego and part naivety that everyone can be "fixed." But these employees suck up your time as a manager and keep you from spending time with your best performers. And when these managers are finally forced to fire their first employee, they rarely look back and think it was too fast. So how do you know when it is time to cut someone loose? We dive into this topic using our personal experiences as managers and executives.