Dr. Headley is a licensed psychologist and health service provider in the state of Kentucky. Across the years he has done some private practice and is particularly interested in working with people in ministry. As a professor at Asbury Theological Seminary since 1990, he has taught courses in the institution’s three counseling degrees, namely, mental health counseling, marriage and family counseling and pastoral counseling. As a faculty member in the CACREP accredited mental health counseling degree, he is also designated as a counselor educator.

Besides his teaching responsibilities at Asbury, for several years Dr. Headley provided assessment interpretations for the Adjective Checklist and DISC for doctor of ministry students. He also provided coaching for many ministers including doctor of ministry students at Asbury Theological Seminary.
 
Dr. Headley has also taught in theological education in several countries including Brazil, India, Indonesia, Jamaica, Kenya, Nigeria and Russia. He has also led preaching events, seminars and/or retreat experiences in these countries and several others including Caribbean countries such as Antigua and Barbuda, Barbados, Trinidad and Tobago and as far away as England.

Dr. Headley has published five books including Achieving Balance in Ministry, Reframing Your Ministry and Family Crucible: The Influence of Family Dynamics in the life and Ministry of John Wesley.  As demonstrated by these titles, Dr. Headley has a strong interest in ministry issues. Accordingly, over the years, he has conducted seminars on ministry topics such as self-care, stress management, burnout, flourishing in ministry, conflict resolution and other related topics for many church-related organizations such as the Church of God in Christ (COGIC), Churches of Christ in Christian Union, The Salvation Army, the United Methodist Church and the Free Methodist Church of North America. For the past four years, he has taught a course titled Flourishing in Ministry for Asbury University. Dr. Headley developed this course which is taught to Salvation Army officers. He has also consulted and done seminars for mission organizations. Additionally, for several years, Dr. Headley has served as a frequent speaker for alumni groups of Asbury Theological Seminary across North America.