Our Team

TLG Staff

Our professional staff brings both depth and breadth to our clients by combining expertise in the behavioral sciences with practical business and executive management experience.

Expertise in Business & Psychology

We offer a staff of expert facilitators with varied backgrounds in

  • industrial and organizational psychology
  • organization development consulting
  • senior executive and line management
  • education

Tino J. Mantella

President & CEO

Tino J. Mantella became President and CEO of Turknett Leadership Group on October 29th, 2018. TLG is one of
the nation’s top leadership development companies, driven by its proprietary Leadership Character model and
grounded in science. TLG has supported hundreds of CEOs and their teams over the last 32 years Founders; Dr.
Robert (Bob) Turknett and Carolyn Turknett will remain engaged and committed to the company’s mission.. Read More

Robert L. Turknett, Ph.D.

Co-founder and Co-chairman

Dr. Robert L. (Bob) Turknett is co-founder of Turknett Leadership Group (TLG), an Atlanta-based consulting firm established in 1987. He served as CEO of the firm for twenty four years, and now serves as co-chairman and senior consultant. Read More

Carolyn N. Turknett, M.A.

Co-founder and Co-chairman

Carolyn (Lyn) Turknett is co-founder of Turknett Leadership Group, an Atlanta-based consulting firm established in 1987. She served as President of the firm for twenty four years, and now serves as co-chairman and senior consultant. Read More

Michael W. Sessions, Ph.D.

Senior Consultant

Dr. Michael Sessions is a licensed psychologist with extensive coaching and consulting experience. He has coached over 350 senior leaders across more than 50 organizations and has consulted with dozens of leadership teams across a number of industries. Read More

Patricia Thompson, Ph.D.

Senior Consultant

Dr. Patricia Thompson is a Corporate Psychologist and Management Consultant who is passionate about helping her clients to achieve better outcomes by cultivating talent and making smart hiring decisions. Read More

Chris McCusker, Ph.D.

Senior Consultant

Chris McCusker has a B.S., A.M. and Ph.D. in Industrial-Organizational Psychology from the University of Illinois at Urbana-Champaign. Dr. McCusker is an educator and executive coach. Read More

Cherry Collier, Ph.D., MCC

Senior Consultant, Diversity & Inclusion Specialist

Dr. Cherry advances healthy cultures, people, and processes through innovative behavior change services and science-based technologies. With more than 24 years of expertise, she propels people, teams, and organizations to achieve their goals using her brain-based scientific approach. Read More

Terri Baumgardner, Ph.D., SPHR

Senior Consultant

Dr. Terri Baumgardner is a senior leadership advisor and executive coach who works with leaders on improving individual, team, and organizational effectiveness. Read More

Marty Gupta

Vice President, Strategy

Marty Gupta is Vice President, Strategy at the Turknett Leadership Group. In this role he is responsible for the firm’s strategy practice which includes strategy facilitation with senior teams, one-on-one strategy coaching, and TLG’s ‘strategy as a service’ online content. Read More

Len Romano

Sr. Consultant, Not-for-profit Practice

Len Romano joined the Turknett Leadership Group in April 2019 as Sr. Consultant, Not-for-profit Practice. Len
brings over 38 years of not-for-profit senior management and CEO experience to the team. He has successfully
improved and turned-around struggling organizations by developing great staff through coaching and
implementing eight essential operating and leadership concepts that have worked in every situation. Read More

Thomas Colligan

Senior Consultant, Non-Profit Practice

Tom Colligan has worked in the non-profit sector since 1976 in a diverse range of community based, statewide,
regional, national, and international organizations. He has extensive experience working with federated and
membership organizations and associations, community centers, human/social service agencies, YMCAs, camping,
environmental and arts groups, museums, housing, and shelter organizations. Read More

Brian Frost, Ph.D.

Senior Consultant

Brian Frost is currently the Director of the Professional Industrial-Organizational Psychology Master’s Program at the University of Georgia. Brian both teaches in and manages the program. He joined the faculty at UGA in 2015 after spending the previous twelve years as a talent strategy consultant and consulting manager to a broad portfolio of clients. Read More

Ikram Omar

Marketing Communications Coordinator

Ikram Omar is an adaptable communicator who has a passion for storytelling and strategic planning. She best describes herself as an optimist and self-starter. Through her studies and professional career, Ikram has developed a versatile set of skills including writing, project management, event planning, research, content curation, design as well as brand management. Read More

Kathryn Igou, B.A.

Vice President, Operations

Kathryn joined Turknett Leadership Group after attempting two years of retirement. It wasn’t that she missed her former daily commute from Roswell down 400 to midtown or wasn’t enjoying having more time to volunteer or spending time with family and friends. “I just needed more structure and to feel like I was making more of an impact. I love sitting on the beach with my book and my cocktail, but I also love to work!” Read More

Barbara Jacobson

Chief Administrator

Barbara Jacobson has been with Turknett Leadership Group since January 2018 and has really enjoyed working while raising and homeschooling their six children. She always loved the contact with clients as well as the accounting and administrative parts of being part of a small business. As her husband moved toward retirement and other interests, and the children grew up, she started looking for a way to boost income while keeping busy doing the kind of work she loves. Read More

Susan B. Hitchcock

Executive Director of Women’s Initiatives, Board Member

Susan Hitchcock has worked with TLG for over 20 years. She was formerly TLG’s Vice President of Client Services. She is the founder and current director of TLG’s popular Women in Leadership (WIL) seminar series. Read More

Josh Turknett, M.D.

Principal Consultant

Joshua Turknett, M.D., is a board-certified neurologist who leads the firm's neuroscience and learning initiatives. Dr. Turknett has practiced in the Atlanta area for the past twelve years, and is also a clinical researcher, best selling author, musician, medical editor of the Journal of Evolution and Health,
Head of Cognitive Enhancement for Nourish Balance Thrive, and the founder of Brainjo, a company that uses the science of learning and neuroplasticity to create optimized learning systems. Read More

Nancy Cranford, SPHR, SRHM-SCP

Alliance Partner, Talent Solutions

Nancy Cranford, former Vice President at Turknett Leadership Group, retired in 2019 and is now an Alliance Partner Talent Solutions. She has more than 35 years of combined experience in Human Resources & Loss Prevention. Read More

Barbara Reilly, Ph.D.

Senior Consultant

Dr. Barbara Reilly, a senior leadership consultant at Turknett Leadership Group, has a broad consulting and academic background. She has coached over 200 leaders over twenty years and has worked with numbers of organizations across the United States and Canada in a variety of industries. Read More

Brian Bienn, Ph. D

Senior Consultant, Assessment & Development Practice

Brian Bienn joined the Turknett Leadership Group in April 2019 as Senior Consultant - Assessment & Development Practice. In this role he supports the firm’s mission of nurturing learning and development for leaders at all organizational levels. Through utilizing best-in-class assessments and developmental feedback with targeted coaching, Brian helps leaders enhance their impact and accelerate their readiness for more complex roles. Read More

Bill Dickinson D. Min, RCC

Senior Leadership Development

Dr. Bill Dickinson is a senior leadership advisor who develops enterprise-wide leadership capacity while ensuring business and performance outcomes are aligned. Read More

Anne Quiello M.S., A.C.C.

Senior Consultant

Anne Quiello joined the Turknett Leadership Group in April 2019 as a Senior Consultant. As a certified and experienced executive and leadership development coach, she consults and delivers on talent development strategies aligned with the organization’s talent needs. Read More

Richard Stone

Strategic Partner & Chief Storyteller

Richard Stone is a nationally recognized speaker on the power of story and its applications in business, healthcare, and education. He got his start nearly 30 years ago developing story-based training programs for team building and leadership development and has been a leader in work on the healing effects of narrative reminiscence. Read More

Perry Anne Scott

Strategic Partner

Perry Anne specializes in building organizational capability by developing people toward business results. Her experience over the past two decades spans Fortune companies, and non-profits. Read More

Lauren S. Harris, Ph.D.

Senior Consultant

Dr. Lauren Harris is an Industrial/Organizational psychologist. She has consulted with Fortune 500 companies, non-profits, and government agencies in the areas of job analysis, competency modeling, selection, performance management, leadership, and organizational development. Read More

Christine Mayfield, Ph.D.

Senior Consultant

Dr. Christine Mayfield has over 18 years consulting experience in multiple industries, including financial services, healthcare, retail, hospitality, transportation, and media. Her areas of focus are leadership assessment and development, organizational surveys, and employee selection processes. Read More

Academic Advisors

Karl Kuhnert, Ph.D.

Senior Research Fellow

Dr. Karl Kuhnert is a professor in psychology and Program Chair of the Industrial and Organizational Psychology Program at the University of Georgia. He teaches organizational psychology, leadership development, and professional ethics. Read More

Olivia Vande Griek

I/O Graduate Research Assistant

Olivia is currently pursuing her doctorate in I/O Psychology at the University of Georgia. In her spare time she works with TLG on special projects. Read More