Our Team

Mark SamuelMark Samuel is the Founder & CEO of IMPAQ, and author of “Creating the Accountable Organization” and co-author of “The Power of Personal Accountability.” For the past 25 years, Mark has guided organizations around the globe to higher levels of long-term, sustainable success. He is frequently called upon by companies to address leaders in solving the challenges of culture change, performance improvement, leadership development and effectively managed teamwork.

Mark has inspired positive, profitable, sustainable improvement in companies worldwide, including Michelin, Chevron Corporation, American Express, Genentech, Baxter Pharmaceuticals, Nissan, Hewlett-Packard, Universal Studios, Pacific Bell, The Royal Bank of Canada, PDVSA of Venezuela and UC-Berkeley.

Mark holds a Bachelors Degree in Social Science; a Masters Degree in Management, with a special emphasis in Organizational Development, both from UC Irvine. Additionally, he holds a Masters Degree in Applied Psychology from the University of Santa Monica.


David RodgersDavid Rodgers, as an expert in implementing team and organizational Accountability systems, brings 25 years of consulting and operational expertise to his work. Prior to working with IMPAQ, David held operational leadership roles in manufacturing, product development, marketing, sales and customer service.

Since joining IMPAQ in 1989, David has guided hundreds of clients in successful implementation of Accountability –Based leadership, team and change systems. His clients have included Cedars-Sinai Medical Center, Kaiser Permanente, Chevron, Shell Oil, Pacific Bell, Pacific Gas & Electric and the United States Navy.

David holds a Bachelor’s of Science, Physics degree from the University of Minnesota Institute of Technology and Master’s Degree in Applied Psychology from the University of Santa Monica.


Jane GrossmanJane Grossman, an accomplished facilitator and consultant in Accountability-Based training and consulting, has more than 15 years working with diverse teams at all levels. Prior to working with IMPAQ, Jane worked for Adventure Associates as one their lead program designers and facilitators. Before becoming a management consultant, Jane worked for 10 years in leadership roles in government and non-profit agencies developing and managing ground breaking environmental programs.

Some of Jane’ recent clients include Texas Instruments, Genentech, Missouri City – Texas, Norton Healthcare, Agilent, The US Forest Service and REI.

Jane has a Bachelor’s Degree in Political Economy of Natural Resource Management from UC Berkeley and a Masters’ degree in Applied Psychology from the University of Santa Monica. She also holds certificates in Training & Development, Organizational Diagnosis, Group Facilitation, Myers-Briggs Type Indicator and Powerful Non-Defensive Communication.


Ami MarcusAmi Marcus as a Culture Change Partner, has been part of IMPAQ‘s executive team for over 10 years and has developed a reputation for building amazing customer relationships founded on trust, compassion, understanding and service. Ami blends her warm and genuine quality with exemplary negotiating and business skills to successfully develop solid relationships across multiple organizational levels and with customers, team members and partners.

Ami’s work with leadership teams and senior management gives her insight into the universal challenges faced by organizations, specifically those of change management, project management and organizational development. As a catalyst, Ami bridges diverse cultural and belief systems through personal, organizational and social transformation.

With IMPAQ, Ami has developed key clients including Texas Instruments, Energy Northwest, and Toyota. Before her career with IMPAQ, Ami enjoyed serving the technology and human development industries, where she was consistently brought in to launch new services and practices in emerging markets.

Ami holds a Bachelor of Science Degree in Marketing from Rider University. She a member of the Board of Directors for the Global Light Source Project and serves as an adviser to the Board of Shasta Commons, and Clear Path to Peace. Ami is also one of the lead proponents for the Mt. Shasta Community Rights Project.


Tom BoyerTom Boyer has more than 30 years of business management, consulting, executive coaching and training experience. Prior to joining IMPAQ, Tom was COO and Lead Facilitator of Insight Seminars, a Senior Consultant with the Productivity Development Group and an expert in large-scale safety implementation with the Top of Organization.

An expert in results-oriented Accountability-Based change efforts; Tom’s clients have included Siemens, Weyerhaeuser, Polaroid, Motorola, Baxter Pharmaceuticals, GlaxoSmithKline, and Kaiser Permanente.

Tom holds a Bachelor’s Degree from Case-Western Reserve University, and Master’s degrees in Music, Psychology and Theology.


Luis Manuel RamirezLuis Manuel Ramirez has been implementing IMPAQ‘s accountability systems and tools for over 15 years as a change agent and facilitator. He is IMPAQ’s consulting services partner in Latin America and Mexico. As an industrial engineer with a Master’s Degree in organizational development he has served in managerial and organization development positions in manufacturing and petroleum industries.

Luis Manuel’s work as a change agent has resulted in helping organizations to increase productivity and employee satisfaction at the same time. In addition, he is an experienced speaker, presenting for professional associations throughout Latin America.

Ingeniero Indusrial con post grado en desarrollo organizacional con mas de 15 años de experiencia en el enfoque del Accountability. Luis además ha sido gerente de empresas en el ramo de manufactura y petrolero. Su trabajo como agente de cambio y facilitador a apoyado a organizaciones alcanzar sus resultados en emenos del tiempo previsto. Es nuestro representante en latinoamerica en especial en Peru y Venezuela. Conferencista de alto nivel y experiencia


Lois VallergaLois Vallerga, FACHE, has been working in management, consulting and training since 1986. Prior to joining IMPAQ, Lois was VP of Organizational Development at St. Charles Medical Centers, founded for the Center for Health and Learning there and was subsequently System Vice President of Organizational Development for Cascade Healthcare.

Under Lois’ Accountability focused leadership, her organizations have won multiple awards, including the Oregon Quality Award, the Norman Cousins Award for healing organizations. Her hospitals have been repeated winners of 100 Best Hospitals and Places to Work in Oregon, as well as being one the first hospitals to achieve ISO 9000 registration.

Lois completed her initial education and clinical training at the University of Missouri, Columbia, followed by a fellowship in Integrative Medicine with the Kaiser Institute. She also holds certification in Organizational Development from DePaul University.