People thrive on positive reinforcement. They can take only a certain amount of criticism and you may lose them altogether if you criticize them in a personal way... you can make a point without being personal. Don't insult or belittle your people. Instead of getting more out of them you will get less
Bill WalshThe ability to help the people around me self-actualize their goals underlines the single aspect of my abilities and the label that I value most—teacher.
Bill Walsh