And the more you know them as individuals, the better the job you can do of appraising, coaching, and placing them in jobs suited to their abilities. Sometimes, a worker will develop skills to a barely adequate level and stop there. He may need help or an incentive to increase his proficiency. Ask yourself if he needs additional training. This is related to his level of skill, but quality also depends on other factors, such as motivation.
Appearances can be deceptive.
Don't confuse activity with accomplishment. What counts is actual work produced. Having subordinates with a sense of responsibility makes life a lot easier for the manager. He can delegate more with confidence and know that things will run smoothly even if he isn't around. Ask yourself if an employee carries out assignments under his own steam.