N.T. Wright addresses Christian character at length.
First, he examines the virtuous purpose of Christian character. The Christian life is one that develops the virtue to act naturally.
Second, he discusses the need for character transformation, a renewal of mind. Character transformation occurs within and initiates a change in behavior.
Third, he considers faith, hope and love. These virtues connect to the development of the fruit of the Spirit within the context of community.
The premise emphasizes both practice and community. We need each other to implement these virtues. We cannot develop as spiritual leadership in isolation.