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Our Team Effectiveness Experts

Susan MacKenty Brady

Susan MacKenty Brady

Executive Vice President of Global Program Strategy & Development, Executive Coach, and Principal Consultant

Susan MacKenty Brady is the Executive Vice President of Global Program Strategy & Development at Linkage. Susan is responsible for guiding the global growth and development of Linkage’s signature immersion learning institutes, as well as public and virtual programming.  

Susan is an expert speaker, coach, and facilitator, and has extensive experience in building executives and leaders across all levels. She is well known for her success designing and implementing targeted leadership initiatives focused on advancing women leaders. Most recently, Susan led Linkage’s research around what women can do differently to help their own journey of advancement, culminating in the research brief and corresponding video 7 Leadership Hurdles Women Face in the Workplace.

Now in its 18th year, she also serves as the co-chair of Linkage's Women in Leadership Institute™, which boasts a network of over 8,000 alumni worldwide. Susan's personal mission is to help leaders step in to lead their best life.

Prior to joining Linkage, she became a sought-after professional development coach for male and female executives alike, thanks to her pragmatic and direct manner. Her coaching philosophy rests on the premise that behavior change comes from understanding the specific behaviors that may be preventing leaders from operating at their highest level of performance and then focusing on these behaviors in a deep and practical way. She also served as the CEO of the Relational Life Institute, an educational services organization, and held leadership positions with two spin-offs of the Harvard Negotiation Project.

Susan earned her BA while on a theater scholarship at Marietta College and holds a master’s in educational leadership and applied behavioral sciences from Ohio University. She is also a contributing author of the book Enlightened Power: How Women Are Transforming the Path to Leadership. She published The 30-Second Guide to Coaching Your Inner Critic and co-authored "Coaching Your Inner Critic" on Forbes.com.

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Mark Hannum

Mark Hannum

Senior Vice President of Research and Development

Mark Hannum is Senior Vice President of Research and Development at Linkage. He partners with clients to create better business results that incorporate both organizational justice and effectiveness. An organization development consultant by training, Mark’s focus has been on understanding and improving executive processes and decision making. Through his work with executive teams, leadership teams, and shared services organizations, his clients have credited him with helping them manage through difficult risks, improve business operations, lead and coach through acquisitions and integrations, and take advantage of growth opportunities.

Mark specializes in using the tools and methods of systems dynamics. He spent his early career working as a group problem-solving facilitator and systems-thinking trainer before moving on to leading organization change efforts and ultimately, acquisitions and integrations. He has been both an internal and external consultant, has held senior-level training positions, and has headed up a shared services human resources operation.

While at Hanover Insurance, Mark was engaged with the Center for Organizational Learning at MIT’s Sloan School of Management. He is currently ABD at Boston University in organization development and is writing a book with a colleague on the foundational processes of executive teams.

Mark earned a BA in Psychology and Philosophy from Bucknell University and an MA in Psychology from the University of Oklahoma before completing the doctoral program ABD.

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Jillian Ihsanullah

Jillian Ihsanullah

Senior Vice President of Consulting

Jillian Ihsanullah, PhD, is Senior Vice President of Consulting at Linkage. She specializes in working with organizations to build values, people systems, and leadership experiences that accelerate the development and commitment of women, while enlarging talent pipelines.

Jillian has designed and facilitated a wide range of leadership development programs, including classroom experiences, action-learning teams, executive coaching, and executive retreats. Most recently, she integrated her passion for leadership with her expertise in measurement as the architect of Linkage’s Return on Leadership Development system, a unique offering designed to measure the bottom-line impact of leadership development efforts. Her clients include Aldo Shoes, American Airlines, GE Capital, General Motors, John Deere, Lockheed Martin, Mattel, McDonald’s Corporation, Morgan Stanley, Toyota, and The United Nations, to name a few.

Prior to joining Linkage, Jillian earned recognition for excellence in teaching undergraduate psychology courses at Purdue University. She previously worked at the Indianapolis think tank, Hudson Institute; cofounded Thought Labs, a social media consulting company; and ran Decisions That Matter, her own executive consulting and coaching business.

She holds a BA in psychology from Connecticut College and an MS and PhD in industrial/organizational psychology from Purdue University, where her research focused on measurement, decision making, and leadership styles.

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Bernardus Holtrop

Bernardus Holtrop

Principal Consultant

Bernardus Holtrop is a Principal Consultant at Linkage. He is an expert group facilitator and executive coach who works with organizations both large and small, including many Fortune 100 companies. Bernardus designs and steers leadership development journeys that improve work relationships, cultivate organizational transformation, and deliver bottom-line results. Within his leadership work, he is passionate about two areas: emotional intelligence, working with leaders to deeply connect to themselves and others, and team effectiveness, fostering trust and (re)building relationships to create results. A global citizen with residences in the Netherlands and the United States, he translates leadership across cultures effortlessly.

Prior to joining Linkage, Bernardus was a strategy and organizational consultant and learning program manager at McKinsey & Company. He developed and ran a program that helped define ideal client service and teamwork, and then devised solutions that helped achieve goals in this focus area. He also managed and redesigned a program implemented to help senior partners become trusted counselors to their clients, as well as inspiring leaders to their teams. Bernardus was also the Chief Learning Officer at Mobius Executive Leadership, a US-based consultancy that is a spin-off of the Harvard Negotiation Project.

Bernardus earned an MS in electrical engineering from the University of Twente and an MBA in general management from the Rotterdam School of Management. He is also a certified transformational coach who helps individuals create breakthroughs in their professional and personal lives.

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Mitchell Nash

Mitchell Nash

Principal Consultant

Mitchell Nash is a Principal Consultant at Linkage. He has over 20 years of experience leading, facilitating, and supporting large-scale change initiatives. Mitchell’s unique expertise is in facilitating organizational impact and results by using technological, organizational, and leadership development solutions.

Mitchell has coached executives and leaders in Fortune 100 companies to produce significant results using a combination of 360° feedback, strategic business models, and behavior change methods. He combines business acumen with in-depth knowledge and experience of organizational and personal dynamics to develop substantive, long-term solutions with his clients. He has also worked with numerous global organizations to support corporate initiatives such as Six Sigma, mergers and acquisitions, executive team building, and high-potential leadership development. Mitchell’s work is always linked to core strategies and values that lead to better business results.

Prior to joining Linkage, Mitchell held several leadership positions. He was the Managing Director of PDI’s Western Region, where he was responsible for P&L and growth targets. He was also a director at Communispace, where he participated in the development of a groundbreaking application that revolutionized the process for gathering and analyzing consumer insights. Mitchell was a partner with Interaction Associates, where he helped significantly grow the business and establish an international presence for the firm.

Mitchell earned an MA in Counseling Psychology from New York University and has spoken at numerous national conferences on topics such as change and transition, organizational collaboration, and coaching.

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Rich Rosier

Rich Rosier

Senior Vice President & Principal Consultant

Rich Rosier is a Senior Vice President and Principal Consultant at Linkage. He works with public and private companies as well as government and nonprofit organizations. He specializes in designing and facilitating a variety of leadership development programs, coaching, organization development and change initiatives, and growth and innovation investments.

Rich has been instrumental in the creation and delivery of numerous leadership development programs, including the Arab Leadership Academy in the Middle East; a successful multimillion dollar cost-reduction change and coaching initiative at a mid-size healthcare system; and a global, virtual team performance improvement initiative at a high-tech company. He has also worked closely with renowned thought leaders including Peter Drucker, Michael Porter, Warren Bennis, John Kotter, Clayton Christensen, Lynda Gratton, Marcus Buckingham, and many others.

Prior to assuming his current position, Rich was Regional Vice President of Linkage’s northeast region. In this capacity, he led a number of Linkage consultants as well as business development resources in the 11 northeast states of the US. Previous to this assignment, he served as VP of Educational Programs where he led the program managers, marketing, sales, and operations teams in the production of hundreds of domestic and international conferences and institutes. During his tenure, over 100,000 managers and leaders from around the world attended these events.

Rich earned a BA from the University of Michigan, is a frequent speaker at international conferences and training programs, and is a guest lecturer at colleges and universities on the topics of leadership development, coaching, change, high-performance teams, and growth and innovation. He co-authored “Leading in Unnerving Times” with Warren Bennis, which appeared in the Sloan Management Review. He has edited four volumes of the highly acclaimed Competency Model Handbook.

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David Vaughn

David Vaughn

Principal Consultant

Dr. David Vaughn is a Principal Consultant at Linkage. His recent work has focused on helping clients navigate matrix management, deploy a coaching culture, build an internal consulting discipline, and develop senior leadership teams. David has in-depth experience facilitating these initiatives in the healthcare, insurance, financial services, consumer products, and light manufacturing sectors.

David uses his extensive coaching experience to help all of his clients, including C-level executives, bring out the best in themselves regardless of the context or business climate. He brings experience from prior general management positions and an acute organizational development mindset to his client engagements.

Prior to joining Linkage, David worked for Anheuser-Busch. As a Regional Director, he was responsible for the Wholesale Operations in seven Midwest and Southern markets. He was also a Director of Business Development and Division Vice President for the Anheuser-Busch subsidiary, Campbell Taggart. Both roles helped prepare him for his assignment to lead their internal consulting efforts, where he focused on business management consulting, operations analysis, sales service strategy development, route distribution planning, computer-based routing, information systems consulting, and hands-on leadership coaching at all levels of independent distributorships, from small to large.

David has also worked as an independent consultant on large-scale global organizational interventions in Asia, Africa, and South America. His work included developing and coaching the executive directors and their leadership teams and boards in how to effectively take on the identity of the organization and manage it as a single-minded group in the deployment of policy, strategy, and solutions to emerging opportunities.

David earned a BS in Industrial Engineering from Missouri University, an MA in Human Resource Management from Washington University in St. Louis, an MBA from McNeese State University, and a PhD in Public Policy and Administration from St. Louis University. He also received a Certificate in Theology from Concordia Seminary in St. Louis.

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Madelyn Yucht

Madelyn Yucht

Principal Consultant

Madelyn Yucht is a Principal Consultant at Linkage. Madelyn is a businesswoman, entrepreneur, consultant, and academic with over 20 years of experience working with leaders and leadership teams to improve performance and achieve strategic objectives, domestically and internationally, in the public, private, and nonprofit sectors.

Madelyn is a master executive coach and facilitator whose experience working with teams has helped organizations overcome silos, build bridges, and create a vision. She helps senior executive teams assess how they interact with one another and how they interact with the larger organization to optimize performance and produce better business results. She also works with cascading operations teams and global teams to ensure that they are aligned and able to support one another.

Madelyn’s work encompasses the full spectrum of industries with particular focus in energy, healthcare, technology, transportation, and consumer organizations. She helps her clients achieve company-wide culture change by leveraging critical business functions, such as customer satisfaction and safety, among others.

Madelyn earned a BA from The College of New Jersey and an MS from Harvard University’s Kennedy School of Government with joint studies at the Harvard Business School. Upon completion of her degree, she remained at Harvard Business School to manage a research project analyzing the performance of over 10,000 companies worldwide to identify the key determining factors to be a world-class performer in the 21st century global economy. She also studied International Relations at Coventry University in England.

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