Meet Our Team

Our secret sauce is our people.

Teachers at heart.

We have more than six decades of experience leading learning. Our bucket is filled when we help people see the strength in themselves, their team and their community.

Passionate about people.

It is our privilege and pleasure to help fellow leaders tap into their unique strengths.  We bring a genuine love and curiosity for understanding each person we serve more deeply and supporting their growth.

Solution seekers.

We are expert at getting teams unstuck and sparking new ways of thinking to overcome persistent challenges.

Fueled by
our mission.

We live for the challenge of realizing system-wide change.

Our Staff

Meet our team of full-time professionals

  • What makes a great leader?

    "They love the mission, love their people, and love the people the mission serves. They see the highest possible good in them and create space to draw that good out."

Leslie Hazle Bussey, Ph.D.

Executive Director

  • What makes a great leader?

    "A great leader knows their strengths as well as their weaknesses."

Nanci Foster

Administrative Assistant

  • What makes a great leader?

    "A great leader is one who casts vision, inspires others, values progress over perfection, and regularly engages in self-reflection."

Meca Mohammed, Ph.D.

VP of Operations & Talent

  • What makes a great leader?

    "A great leader listens before speaking and they care more than correct."

Aaryn Schmuhl, M.Ed.

VP of Program Development & Innovation

  • What makes a great leader?

    "A great leader understands the complexity of the human mind, to inspire, motivate, and support others to do great things.”

Terri Seay Bryant, Ph.D.

Senior Program Director

  • What makes a great leader?

    "A great leader prepares those they lead to become great leaders too."

Taylor Hudson

Marketing & Communications Manager

  • What makes a great leader?

    "A great leader knows their mission. They are driven by their passion and purpose."

James Osanyinbi, M.P.A.

Monitoring & Evaluation Manager

  • What makes a great leader?

    "A great leader can discern why and where they are leading. A team is better than the sum of its parts because the leader inspires, connects, challenges, and encourages others to achieve the impossible together."

Jennie Welch, Ph.D.

VP of Strategy & Finance

  • What makes a great leader?

    "A great leader is curious. They listen, they aren't afraid to ask “what if” and they revel in their team's accomplishments."

Laura Disque

Development Director

  • What makes a great leader?

    "Great leaders have integrity, passion, empathy and the desire to make a positive impact on those around them.

Lori Jackson

Bookkeeper

  • What makes a great leader?

    "They never ask a person to do something they are not willing to do themselves."

Letishia Seabrook Jones, Ph.D.

Senior Program Director

  • What makes a great leader?

    "A great leader cares deeply for others and governs their own actions by understanding and responding to both the short-term and long-term needs of the collective."

Kasey Wood, M.Ed.

Associate Director of Organizational Effectiveness

Our Consultants

Meet our team of skilled experts

Brenda Jones, Ed.S.

Brenda Jones joined GLISI’s consulting team in 2016 after wrapping up a 33-year career in education, serving as an elementary teacher for 27 years and a literacy coach for over 5 years.

Brenda holds an Ed.S. in Elementary Curriculum and Instruction and an M.A. in Arts in Teaching Early Childhood from Piedmont College, as well as a B.A. in Elementary Education from Mars Hill College.

Gale D. Hulme, Ed.D.

Gale D. Hulme began serving as a GLISI consultant in 2017, bringing to the role over 30 years of combined experience as a classroom teacher, department chair and district administrator in a small, a medium and a large school district in Georgia. Prior to her role as a consultant, Gale served for ten years as CEO and Executive Director of GLISI, during which time she spearheaded the organization’s transition to an independent nonprofit in 2012 and bolstered GLISI’s reputation in Georgia and across the country as a premier leadership development organization.

Gale holds an Ed.D., an Ed.S., an M.A., and a B.A. in English education from the University of Georgia and is certified in both leadership (SRL) and teaching (SRT) in Georgia.

Georgia Wilson, Ed.S.

Georgia Wilson began serving as a consultant for GLISI in 2006. With over 30 years of experience in education, teaching at both the middle grades and high school level and serving nearly a decade as a professional learning coordinator, Georgia is a skilled trainer in instruction and educational leadership.

In her years as a GLISI Consultant, Georgia has worked with school and district leaders in GLISI’s Power of 100 Districts, redesigned GLISI’s coaching model, and provided training to over 400 GLISI-trained leadership performance coaches.

Georgia holds an Ed.S. in Administration and Supervision from the University of West Georgia, an M.A. in Teaching from Wesleyan University, and a B.A. from LeMoyne-Owens College.

Jeff Barker, Ph.D.

Jeff Barker joined GLISI as a consultant in 2019 with over 31 years of combined experience as a teacher, instructional coach, and assistant principal. In spring of 2019, he retired from his role as Senior Research Scientist and Director of the Georgia Center for Assessment at the University of Georgia. He has also served as Executive Director in Gwinnett, as Director of Assessment at GaDOE, and on several national committees—NAEP, HMH Advisory, PARCC. His leadership experience includes providing training and support through the UGA Leadership and Mentoring Program, the GCPS Leadership Cabinet and the Georgia State Charter Schools Commission.

Jeff holds a Ph.D in Teaching and Learning, an Ed.S. in Educational Leadership & Administration, and a B.S. in Public & Urban Affairs from Georgia State University as well as an M.Ed. in Middle Grades Education and Teaching from University of West Georgia.

Jean Triplett, Ed.S.

Jean Triplett joined GLISI’s consultant team in 2018.  She has 43 years of combined experience in education as a teacher, assistant principal, principal, and Assistant Superintendent of Morgan County Schools.

Before onboarding as a consultant, Jean collaborated with GLISI for seven years to embed effective practices into the way her school district approaches its school improvement efforts and leverages teacher leadership as a key driver in the change process.

Jean holds an Ed.S. in Educational Leadership and an M.Ed. from the University of Georgia.

JoAnn Brown, Ed.D.

JoAnn Brown began working with GLISI as a consultant in 2003 after accumulating over 25 years of combined experience in education as a teacher, an assistant principal, and a principal at the elementary school level.

JoAnn developed GLISI’s Rising Stars Program which effectively trained 600 aspiring leaders throughout the state, provided oversight for the development of two online courses of Organization Leadership and Law and Ethics for Gwinnett County, and has supported strategic planning and aspiring leaders programs statewide.

JoAnn holds an Ed.D. in Educational Leadership from the University of Florida, an M.A. in Educational Administration and Supervision from the University of North Florida, an M.A. in Gifted Education from the University of South Florida, and a B.A. in Elementary Education from the University of South Florida.

Mildred McCoy, Ed.D.

Mildred McCoy joined GLISI’s team of consultants in 2011 after completing a 30-year career in education, during which time she served as a teacher, a counselor, a principal, and a director of professional learning. Since 2011, Mildred has also worked with Clayton County Public Schools as a leadership coach.

Mildred holds an Ed.D. in Educational Leadership from Argosy University, an Ed.S. in Educational Leadership from Troy State University, an M.Ed. in School Counseling from the University of West Georgia, and a B.S. in English Communications from Mississippi Valley State University.

Nancy Martin, Ed.S.

Nancy Martin began working with GLISI as a consultant in 2016. Her 35 years of experience as an educator began with 11 years of classroom teaching experience and include time serving as a middle school assistant principal, middle and high school principal, and assistant/area superintendent in Gwinnett County Public Schools.

Nancy holds an Ed.S. and M.Ed. from the University of Georgia and a B.A. in Education from Emory University.

Patty Heitmuller, Ed.D.

Patty Heitmuller stepped in the consultant role following her position serving as GLISI’s Director of Leadership Program Development and having previously worked with GLISI as one of its original design team members. Patty brings over 30 years of combined teaching, district-level, and school-level leadership experience.

Throughout her career, she has been recognized for her outstanding teaching, her excellence in leadership, and her contributions to the field of instructional supervision. As a testament to her effectiveness as leader, Patty was twice-selected to open new Gwinnett County schools: Harbins Elementary School in 1995, where she served for nine years, and Louise Radloff Middle School in 2004, where she served for seven years.

Patty holds an Ed.D. in Instructional Supervision, an M.Ed. in Middle Grades Education, and a B.S.Ed., all from the University of Georgia.

Raymond Bryant, Jr., Ed.D.

Raymond Bryant, Jr., began serving as a GLISI Leadership Consultant in 2019 after 25 years of combined experience as an educator. Raymond has served as a classroom teacher, Assistant Principal, Principal, Coordinator of Elementary Schools, Coordinator of Leadership Services, Director of Leadership Services, Executive Officer, Assistant Superintendent of Administrative Services and Chief Operations Officer.

Raymond holds an Ed.D. in Educational Leadership from NOVA Southeastern University; an Ed.S in Educational Leadership/Administration from Florida State University, a M.Ed in Elementary Education from Florida A & M University and a B.S. in Elementary Education from Florida A & M University.

Sue Holt, Ed.S.

Sue Holt stepped into a consulting role with GLISI in 2012 after completing a nearly forty-year career as an educator, during which time she served as an elementary teacher, an elementary principal, and a director of special education. Since 2009, Sue has also worked closely with the Northeast Georgia RESA as a Principal Induction Performance Coach.

Sue served as a GLISI Implementation Consultant to Morgan County, helping the district facilitate professional learning communities dedicated to creating a performance culture through data analysis and as a performance consultant at Base Camp and Leadership Summit.

Sue holds an Ed.S. in Supervision from the University of Georgia, an M.Ed. in Elementary Education, and a B.S. in Elementary Education from Georgia State University.

Sue Myers, Ph.D.

Sue Myers joined GLISI’s team of consultants in 2019 after completing a 30-year career as an educator, during which time she served as a teacher, School Improvement Specialist, Assistant Principal, Principal, Director of Title I, and Executive Director of School Improvement and Assessment.

Sue holds a B.S. in Elementary Education from St. Cloud State University, a M.Ed. in Middle School Education from the University of Georgia, and an Ed.S. and Ph.D. in Educational Administration and Supervision from Georgia State University.

Wandy Taylor, Ed.D.

Wandy Taylor began working with the GLISI team of consultants in 2016 after completing 22 years as an educator in public school settings in Georgia and South Carolina.

During her 15-year tenure in Gwinnett County Public Schools, Wandy served as a school counselor, an assistant principal, and 8 years as a principal.

Wandy holds an Ed.D. in Educational Leadership and Management from Capella University, an Ed.S. in Educational Administration from the University of West Georgia, a M.Ed. in School Counseling from South Carolina State University, and a B.A. from the University of South Carolina.

Will Rumbaugh, Ed.D.

Will Rumbaugh stepped into a consulting role with GLISI in 2017. With 30 years of combined experience as an educator, Will began his career as a high school teacher, but has since held positions as an elementary school principal, a Language Arts/Media Supervisor, K-12 Curriculum Director, Assistant Superintendent, and Area Superintendent. Most recently, Will has served at the Georgia Department of Education as an Assessment Specialist and Director in the School and District Effectiveness Division.

Will holds an Ed.D. in Educational Leadership from the University of Georgia, an Ed.S. in Educational Leadership from State University of West Georgia, and a M.A.T. and B.A. in English from Georgia State University.

Yvonne Frey, Ed.S.

Yvonne Frey has been a GLISI consultant since 2014. She has over 29 years of combined experience as a teacher, assistant principal, and principal in Georgia. She recently retired from Gwinnett County Public Schools, completing an 11-year tenure as the charter principal of Ivy Creek Elementary School.

Since retiring she has served as a leadership development coach and as a co-facilitator for a wide variety of leadership training partnerships across Georgia, including aspiring leaders programs and facilitating summer leadership institutes in districts across Georgia.

Yvonne holds an Ed.S. in Educational Leadership from the University of Georgia, an M.A. in Middle School Education from Georgia State University, and a B.A. in Middle School Education from the University of Georgia.

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What does a consultant do?

Consultants are contracted by GLISI to lead our partners towards higher performance by asking the right questions, offering targeted and specific feedback, and sharing knowledge relevant to the unique challenges our partners face.


Are consultants compensated for the work?
Yes. Consultants are compensated varies based on the scope of work and reimbursed for reasonable travel expenses, including transportation, lodging and meals.

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Join Our Team

Our workplace is one of intense focus and fun.

We are seeking talented people who share our commitment to build schools and communities that pursue breakthrough success for every child, regardless of race, geography, or family income.

Competitive salary
and benefits

Flexible work hours

Telecommute options available

Commitment to professional development