Our Team

OLA Consulting is a team of experienced and proven experts in leadership, management, and organization development consulting, facilitation, and coaching.

Iris Ioffreda, MA, PCC

Iris Ioffreda, MA, PCC

Principal

“Be brave enough to start a conversation that matters.” – Margaret Wheatley

Iris focuses on leadership development, executive coaching, building high performance teams, facilitation, and strategic planning. She works with senior leaders on creating organizational vision and alignment, cultivating emotional intelligence, developing inclusive work environments, ensuring good communication, and improving leadership effectiveness. Iris has over twenty years of management experience in corporate, non-profit, government and educational settings. Her business experience ranges from managing a small company focused on health care needs in developing countries, to sales and marketing at IBM. She has extensive experience in adult learning, gained through her work directing conference and training programs for George Mason University’s Center for Health Policy, Research, and Ethics and the Association of Women’s Health, Obstetric, and Neonatal Nurses, a national association.

Iris is an ICF certified executive coach, has a post-graduate certificate in Organization Development and Leadership Coaching from Georgetown University, and an MA in Political Science from the University of Michigan. Iris is fluent in Spanish and has lived and worked extensively overseas.

Angelo Ioffreda, MBA, MA, ACC

Angelo Ioffreda, MBA, MA, ACC

Principal

“Wisdom, compassion, and courage are the three universally recognized moral qualities of men.” – Confucius

Angelo brings expertise in communications strategy, change leadership and employee engagement. Angelo has held leadership roles with NII Holdings, Inc., The World Bank Group; Sodexo; AOL & AOL-Time Warner; Robinson, Lerer, and Montgomery Strategic Communications; and the U.S. Department of State. Angelo is adept at designing, developing, and implementing effective, innovative communication and marketing strategies to engage people and drive business performance. Areas of expertise include strategy development, strategic, global and cross-cultural communications, change leadership and transformation, employee and brand engagement, metrics and measurement, visual communication, storytelling, collaboration, and digital media. Angelo has presented widely at conferences by The Conference Board, Melcrum, The International Association of Business Communicators, and Marcus Evans on a variety of communication topics.

Angelo has an MBA from the Wharton School, and an MA in International Affairs from the University of Chicago. Angelo was both a Presidential Management Fellow and a Thomas J. Watson Fellow. He is a past president of IABC DC Metro, the largest IABC chapter in the U.S.

Carol Cadby, MA

Carol Cadby, MA

Coach

“Everyone has the ability to reach their potential, they just need encouragement.”

Carol is a leadership coach specializing in voice, speech, and leadership presence. She helps leaders find their voice, overcome stage fright, and develop their unique personal presentation style. She also works with leaders to develop leadership presence through body awareness, movement, and voice quality, and helps them to use storytelling and narrative for higher impact communication.

Carol brings her training as a professional actor and acting teacher to her coaching. She has taught acting and theatre for more than 25 years at the college and high school level. She currently teaches at George Mason University, Signature Theatre, Synetic Theatre and Arlington Public Schools. She also lectures, coaches, and directs across the country and serves as an Arts Commissioner for Arlington County.

She has received numerous directing and teaching awards, and has been nominated for a Tony Award in Theatre Education. In 2017, she received the F. Loren Winship Secondary School Theatre Award from the American Association of Theatre Educators, nationally recognizing her long-term contribution as a pioneer in secondary education. Prior to becoming a teacher, she was a professional stage and film actor for ten years based in Miami, Florida, and is trained in various acting techniques.

Carol has a BA from Grinnell College and a MA in Self-development through Arts Education from George Mason University. She is fluent in Spanish.

Caryn Anthony MA, ACC

Caryn Anthony MA, ACC

Consultant and Coach

“It is our choices…that show what we truly are, far more than our abilities.” – J.K. Rowling

Caryn is a nonprofit consultant and executive coach dedicated to empowering mission-driven organizations and leaders to achieve their highest goals fueled by their deepest values. Caryn has extensive experience providing expert guidance to nonprofits in the areas of strategic planning, board governance, organizational assessments, and leadership development. Her work has included volunteer-run organizations of all sizes as well as city and county government agencies in areas such as human services, public health, environmental advocacy, animal welfare, community development, and social justice.

As an executive coach, Caryn works with individual clients to explore and identify their goals, and to strengthen their professional skills. As a consultant, she has developed leadership programs on a variety of topics.

Caryn is an ICF certified coach and is a licensed consultant with the Standards for Excellence® Institute. She holds a MA in Not-for-Profit Management from the University of Maryland University College (UMUC), and a BA in Developmental and Child Psychology from Tufts University.

Celeste Garcia, MPA

Celeste Garcia, MPA

Consultant

“When you change the way you look at things, the things you look at change.” – Wayne Dyer

Celeste is a seasoned organization development practitioner with more than 25 years of management consulting experience. She has worked across the public, nonprofit, and private sectors. Her areas of expertise include strategic planning, organizational assessments, team building, and business process improvement.

She has led organizational development projects for federal agencies, such as the Internal Revenue Service (IRS), the Government Accountability Office (GAO), the Centers for Medicare and Medicaid Services (CMS), the Office of Federal Housing Enterprise Oversight, and the Office of the Assistant Secretary for Health at the Department of Health and Human Services (HHS). She also has supported transformation efforts for municipal organizations, such as the District of Columbia Office of Contracting and Procurement and the Washington Convention Center Authority.

Celeste holds a MPA from the Harvard Kennedy School of Government and a BA in Economics from Harvard College. She is trained in DiSC and the Myers-Briggs Type Indicator (MBTI). She has studied organizational development at NTL, attended facilitation training, and completed the leadership development program at the University of Maryland.

Clarissa Cullers MBA, PCC, BCC, SPHR

Clarissa Cullers MBA, PCC, BCC, SPHR

Coach

“In the end we are our choices. Build yourself a great story.” – Jeff Bezos

Clarissa is an experienced coach and human capital consultant with more than 25 years of client management and professional service delivery in areas of Leadership Development, Executive Coaching, and Human Capital Strategy. She enjoys working with organizational leaders and senior leadership teams as they uncover new information about themselves and develop their leadership journey.

Adept at analyzing business requirements and creating strategic solutions to improve performance, Clarissa works with individuals and teams to help them maximize their potential. Clarissa has coached executives, managers and teams in the federal government, large multinationals, telecommunications, financial services, education and non-profit organizations. She also has designed and led 360 assessment and coaching programs for multiple organizations. Clarissa serves as Adjunct Faculty and Executive Coach with the Center for Creative Leadership.

Clarissa holds an MBA from the University of Virginia Darden School of Business, and is an International Coach Federation Professional Certified Coach (PCC), Board Certified Coach (BCC), Senior Professional of Human Resources (SPHR), and Certified Leadership System Practitioner. She is certified in the Center for Creative Leadership Benchmarks 360 Assessment Suite, Leadership Circle Profile, OPM Leadership Effectiveness Inventory 360, Myers-Briggs Type Indicator (MBTI) Step I & II, FIRO-B and FIRO Business, Workplace Big 5, and DISC Assessment. She is also experienced with Hogan Assessment Suite, StrengthsFinder 2.0, TKI Conflict Mode Assessment and NEO-PI-R Personality Inventory.

Daphne Miller, PCC

Daphne Miller, PCC

Coach and Facilitator

“True power is an integrated mind-body state in which energy flows unrestricted towards a purpose.” – Thomas Crum

Daphne is a credentialed Executive Coach with over 3,000 hours in direct one on one coaching. Her expertise is in working with individuals and groups with an emphasis on leadership development, training, and developing strong cross discipline partnerships. She brings over twenty-five years of experience in sales, marketing, and leadership positions with the past fourteen in leadership development, coaching, and facilitation.

She is skilled at identifying core issues and partnering with her clients. Daphne respects the coaching relationship and how it can offer new perspectives for coachees and open doors that they may not have ever noticed before. Daphne challenges and supports her clients to meet their goals through finding new paths in meeting challenges and opportunities. She does this through the lens of language, emotional intelligence skill, and somatics. Daphne also serves as a Coach Fellow in the George Mason University Coaching for Well-Being and Leadership Coach Training Program.

Daphne has worked across sectors including, non-profits, companies, and with multiple federal agencies. She has engaged with mid-level managers who are just entering management to senior and SES level executives. The engagements range from individual assignments to being part of a project to provide 360 assessments to 1,300 employees with 6 hours of follow on coaching. She has worked with a range of organizations including: National Geospatial-Intelligence Agency, Center for Medicaid and Medicare Service, Internal Revenue Service, FEMA, National Institute for Environmental Health Sciences, GSA, USDA, Architect of the Capitol, and Arlington County Government.

Daphne is a Coach Fellow and adjunct faculty in the George Mason University’s Coaching to Well-Being and Leadership Coach Training Program. She trained in ontological coaching at the Newfield Network and completed the Advanced Coaching Program at George Mason University. She holds a PCC Credential from the International Coach Federation. A Texas native, Daphne has a B.S in Communications and Business from the University of St. Thomas in Texas. She is certified in multiple assessments, including the Center for Creative Leadership Benchmarks 360° Assessment, the Lominger 360° Assessment, the Leadership Circle Profile 360, the Myers-Briggs Type Indicator (MBTI), the Thomas-Kilmann Conflict Mode Instrument, SOAR (Success through Observer, Action, Results), and DiSC.

Laura Mendelow, MA, PCC

Laura Mendelow, MA, PCC

Coach

“A good leader inspires people to have confidence in the leader; a great leader inspires people to have confidence in themselves.” – Eleanor Roosevelt

Laura focuses on developing dynamic leaders who are self-aware, connected and inspired to achieve great results in both organizations and at home as a parent. Her approach, rooted in psychology, management theories, and organizational development, focuses on the core psychological needs of people. She believes “when you ‘get’ people, you get results.” Her experience as both an external and internal consultant gives her a unique perspective in working with clients to create innovative yet sustainable results.

Laura has coached leaders at a wide range of organizations including FEMA, CMS, DOE, SEC, DOD, the Judiciary, Goodwill, USA Today, Kimely-Horn, and Booz Allen, where she previously managed the internal coaching and organization development program for senior leaders. In addition to her coaching, Laura is an experienced facilitator and was an Adjunct Instructor at Marymount University teaching a graduate level Facilitation Skills course as well as a guest instructor at George Mason University teaching the Leadership Coaching for Organizational Performance certificate program. Laura also facilitates an industry-recognized Organization Development Book Club to discuss latest developments in the learning and organization development field.

Laura has a MA in Organization Development from Marymount and a BS in Psychology from the University of Wisconsin at Madison. She is a Professional Certified Coach (PCC) and is certified in a variety of assessment including the Leadership Circle Profile 360, the Hogan Inventories, EQ-I Bar-On assessment, DiSC and the Myers-Briggs Type Indicator (MBTI). As a way to give back, Laura offers a “Parent as Leader” program where she works with parents in applying leadership principles at home and building stronger family relationships.

Marlana R. Valdez, JD, ACC

Marlana R. Valdez, JD, ACC

Consultant and Coach

“When one door of happiness closes, another opens; but often we look so long at the closed door that we do not see the one which has opened for us.” – Helen Keller

Marlana is an organization development consultant specializing in leadership development, international and cross-cultural issues, and law. She works with organizations to improve leadership effectiveness, enhance work processes and employee morale, and create strategic plans focused on systemic reform.

A highly skilled educator, facilitator, and trainer, Marlana’s career spans three decades of work as a practicing attorney, professor, higher education administrator and management consultant. She specialized in family, children’s and women’s legal issues during her teaching career at the law schools of American University, George Washington University, and Georgetown University.

Marlana is a member of the faculty at the Key Leadership Program at American University’s School of Public Affairs and served for four years as the Independent Juvenile Justice Monitor for the state of Maryland. She has worked throughout the Middle East and North Africa, and her most recent long-term international assignment was in Kosovo.

She received both her JD and BS degrees from the University of Texas at Austin and is a Fellow at Georgetown University’s Center for Juvenile Justice Reform. She has a certificate in Organization Development from Georgetown University and is completing her coaching certification with the International Coach Federation.

Tatia D. Granger, PhD, PCC

Tatia D. Granger, PhD, PCC

Coach

“Practice makes better.”

Tatia helps her coaching clients achieve personal and professional clarity by strategically and purposefully co-creating their best leadership success. She brings more than 25 years of integrated learning and practice from higher education, non-profit talent development, management consulting and volunteer leadership in community and civic organizations to her role as a leadership coach.

As a leadership coach and strategist, Tatia partners with individuals, teams and organizations to find and commit to paths of intentional leadership. She believes that helping her clients visualize, plan and move toward their “sense of better” launches positive and purposeful development. Tatia has coached clients in higher education, the non-profit sector, and internationally with an emerging leaders program focusing on the next generation of business talent in Africa.

She currently serves as a Clinical Associate Professor in Organizational Behavior at the Raymond A. Mason School of Business at the College of William & Mary for undergraduate and MBA students. She also collaborates on and presents professional leadership seminars on behalf of the Center for Corporate Education. For nine years, Tatia served as the Ombuds at William & Mary where she worked to support more open and effective communication among employees and with the College; and in doing so, helped to create a work environment of greater satisfaction through effective conflict management resources.

Tatia received a PhD in Higher Education Administration with a focus on leadership from the University of Virginia, a MEd in Social Foundations of Education, and a BA in French. She also completed Georgetown University’s Leadership Coaching Program and earned the ICF certification of Professional Certified Coach (PCC). She is certified to administer the Conflict Dynamics Profile CDP-360 and CDP Individual assessments. Tatia is actively involved in the Williamsburg, VA, community.

Vanessa Defournier, MSc, MS, PCC

Vanessa Defournier, MSc, MS, PCC

Coach

“One doesn’t discover new lands without consenting to lose sight of the shore for a very long time.” – Andre Gide

Vanessa works with senior executives and emerging leaders to improve business results, leadership skills, career decisions, and well-being. With more than fifteen years of diverse professional experience in multinational organizations, including the Inter-American Development Bank, her rich career has run a course parallel to the geographical and cultural changes she’s undergone throughout her life.

Born in Panama to a French father and an Ecuadorian mother, Vanessa has lived and worked in France, the UK, Brazil, Peru, Mexico, Argentina, and the United States. Currently based in Luxembourg, Vanessa works with clients across Europe, as well as in the Unites States and Latin America. Vanessa brings insights into the topic of transitions from her own lived experience.

Vanessa has an MSc in Development Management from the London School of Economics and an MS in International Affairs from Sciences Po in Paris, where she also received her BA in Political Science. She is certified in Leadership Coaching by Georgetown University, PCC accredited by the International Coach Federation, and works in French, Spanish, Portuguese, and English. Vanessa is also certified in a number of assessment tools, such as the MBTI, DISC and DISC 363, the Leadership Circle Profile 360, and the Life GPS tool.

OLA Consulting

633 South Buchanan Street
Arlington, VA 22204

703.338.6641

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