If you can hire people whose passion intersects with the job, they won't require any supervision at all. They will manage themselves better than anyone could ever manage them. Their fire comes from within, not from without. Their motivation is internal, not external.
The reality is that everybody makes mistakes. The issue isn't whether you will make them, it's what you will do about them. It's whether you will choose the path of humility and courage or the path of ego and pride.
Too many vacations that last too long, too many movies, too much TV, too much video game playing - too much undisciplined leisure time in which a person continually takes the course of least resistance gradually wastes a life. It ensures that a person's capacities stay dormant, that talents remain undeveloped, that the mind and spirit become lethargic and that the heart remains unfulfilled.
Opposition is a natural part of life. Just as we develop our physical muscles through overcoming opposition - such as lifting weights - we develop our character muscles by overcoming challenges and adversity.
I am personally convinced that one person can be a change catalyst, a 'transformer' in any situation, any organization. Such an individual is yeast that can leaven an entire loaf. It requires vision, initiative, patience, respect, persistence, courage, and faith to be a transforming leader.