- Leadership Studies
- Educational Studies
- DMin in International Theological Education – Columbia International University
- MDiv in Exposition and Teaching – International School of Theology-Asia
- BS Civil Engineering – Purdue University
Dr. Ronald Dean Gaff is the Executive Director of IGSL. Besides helping lead the school, Dr. Gaff teaches in the Leadership Studies Department. He is an Iron Sharpening Group (ISG) leader and Target Area Ministry (TAM) coach, who mentors students in leadership and ministry areas. He also oversees IGSL building projects and major renovations.
After six years as Campus Crusade for Christ staff in the US, he has been serving as an overseas missionary for more than 36 years. The first 16 years were spent helping build Filipino leaders for Great Commission ministry, and the latter ones as faculty member at IGSL, developing Asian leaders. He was ordained by the Churches of God General Conference in Ohio, and is currently a board member of the Gospel Church of Manila.
Dr. Gaff holds to the personal conviction that the Great Commission is an educational mandate to make leaders who make leaders. He believes that developing Great Commission leaders is the supreme and most enduring leadership development endeavor entrusted to man.
He is married to Jennifer Gaff, and they have two daughters, Caitlin and Renae. Basketball, exercise and carpentry are some of the things he enjoys in his spare time.