Coaching and Mentoring

You are in your office looking over your performance report and it happened again. Your low performing employee failed to meet quota this month even after you spoke with them about the importance of meeting goals. This employee has a great attitude and you know they can do better. You just do not know how to motivate them to reach the goal. Money used to work, but that has worn off. You are baffled and you know being frustrated makes matters worse. What do you do?