Tried and True The Countercultural Virtues of Christian Leadership Recovering Timeless Leadership Vision for Contemporary Challenges Tried and True offers a unique convergence of the decades of leadership experience of authors Margaret Diddams and Shirley Mullen with a historical exploration of John Wesley’s life and leadership. Informed by their personal and professional journeys in both higher education and corporate consulting, Diddams and Mullen provide a comprehensive and practical study of John Wesley’s leadership practices and his holistic view of leadership that transformed not just his immediate community but the shape of church history. In Tried and True , Diddams and Mullen • revive John Wesley’s timeless leadership practices for modern challenges; • integrate inner character with outward community impact for a vision of sustainable leadership; and • offer a hopeful vision for today’s leaders and the communities they serve.
The Countercultural Virtues of Christian Leadership
Margaret Diddams Shirley A. Mullen
August 25, 2026 248 pages, paperback, 978-1-5140-1390-8 6 x 9 inches, $26.99 REL108030 RELIGION / Christian Living / Leadership & Mentoring
MARGARET DIDDAMS (PhD, NYU) is an industrial-organizational psychologist, former provost and chief academic officer of Wheaton College, and a former senior manager at Microsoft.
SHIRLEY A. MULLEN (PhD, University of Minnesota; PhD, University of Wales) served as president of Houghton University for fifteen years.
Insight from the Authors Share three contributions you believe this book makes to the scholarly community 1. A complete model of leadership grounded in the mature character of the Spirit-led leader, rather than the natural gifts and strengths of the leader. 2. A model of leadership that rests on the dialogical relationship of the leader with the community, as both seek to focus on the flourishing of the mission and purpose of the organization. 3. The incorporation of the life and work of an exemplar-tutor of leadership—John Wesley—as inspiration for the difference that leadership can make for an entire culture.
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