Country Leads

Our country leads have a diverse mix of change management experience.

Australia Country Lead

Susan Rich

Susan is a senior change manager with over 25 years of experience. She holds Prosci Practitioner, APMG International Practitioner and AIM certificates in change management. Coming from a background in project and program management, Susan holds qualifications in those disciplines, too.

Susan often works in multidisciplinary teams tasked to strategically plan and deliver large-scale, complex transformation programs. She specializes in regulatory reform, digital transformation, and post-merger integration programs.

Canada Country Co-Lead

Ken Marchant

Ken is a seasoned change management practitioner with over 15 years of experience across diverse industries and countries in both public and private sectors.

He specializes in driving transformation that is not only strategic but also practical, ensuring change is effectively implemented and sustained at all levels of an organization.

Canada Country Co-Lead

Charlotte Marqueste

Charlotte is a transformational leader with over 25 years of experience in project management, change management and strategy, mainly in the insurance and healthcare industries. She has successfully designed and implemented solutions that enhance organizational capability, create high-performing sustainable organizations that achieve strategic and operational goals.

Charlotte has worked in France, Canada and the United-States and holds the Project Management Professional (PMP) and Prosci certifications.

Czech Republic Country Lead​

Jakub Vetrovec​

Jakub is a change and transformation professional with over a decade of experience across multiple industries and countries . He focuses on aligning people, processes, and technology to build a sustainable future.

Jakub builds internal change capabilities and supports sustainable change. As the founder of the Czech Chapter of the Change Management Institute, Jakub is committed to supporting the growth of the profession locally and globally.

Czech Republic Country Co-Lead

Adéla Suchá

Adéla has over seven years of experience as a project manager, with a strong track record in designing and establishing a project management office that she continues to lead successfully. Working in a fast‑growing organization with frequent acquisitions and implementing data‑driven projects for clients has made change management one of her core strengths and an integral part of her daily work.
She focuses on connecting project management, data initiatives, and modern technology adoption with the human side of change.

Ireland Country Lead

Thérèse Walsh​

Thérèse is a senior change management professional with over 25 years’ cross-industry experience leading teams and delivering successful transformations across Ireland, UK, and Europe.

Since setting up her own business in 2014, she has worked with companies across multiple sectors to help them develop their people to deliver significant business change.

New Zealand Country Co-Lead

Andy Bradwell

Andy is a seasoned leader with a diverse and accomplished career in the telecommunications industry across both the UK and New Zealand. He has held senior roles in Marketing, Product Management, and Change Management, bringing a broad strategic perspective to organisational transformation.
Andy played a pivotal role in establishing the Change Management function at Chorus, and has led the team for over 12 years. His leadership has been instrumental in navigating major transitions, most notably the demerger of Chorus from Telecom New Zealand, where his expertise ensured a smooth and people-focused change journey.

New Zealand Country Co-Lead

Sharon Paine

Sharon is an experienced Change Manager with over 15 years of experience in change programmes across both the public and private sector. She has extensive experience in leading technology change, embedding organisational culture change, and developing new ways of working.

As a practitioner, Sharon is passionate about enabling impacted employee focused change, building change leader capability and improving organisational change agility.

UK Country Co-Lead

Soraya Robertson

Soraya is a senior leader who has worked in the aviation, health care, IT and education markets in the UK, EMEA and Asia. Highly experienced in leadership and team development, learning, corporate communications, and change she works to create healthy and high performing human systems.

Soraya gained her certificate in Organisation Development from the NTL Institute for Applied Behavioural Science, holds an
EMCC accredited Coach-Mentoring qualification and is an advanced practitioner in People Centred Implementation.

UK Country Co-Lead

Katja Norman Buller

Katja has been working in the change space for 20 plus years, supporting Leaders and employees to embrace change. She has worked in aviation for many years, as well as utilities and more recently financial regulation.

Katja is passionate about developing effective, happy teams and driving change capability in organisations. She is a Change Management Accredited Change Professional, Prosci practitioner and certified Change Management Professional.

USA Country Lead

Melissa Sims

Melissa is the Regional Chief of Human Resources for the Northeast Region of the National Park Service.

She is a graduate of the United States Military Academy at West Point. Melissa holds a Bachelor of Science in Sociology and Systems Engineering.  Melissa also holds a Master of Science in Human Resources, as well as a Master of Business Administration and is currently pursuing her PhD in Communications.

Australia Country Co-Lead

Susan Rich

Susan is a senior change manager with over 25 years of experience. She holds Prosci Practitioner, APMG International Practitioner and AIM certificates in change management. Coming from a background in project and program management, Susan holds qualifications in those disciplines, too.

Susan often works in multidisciplinary teams tasked to strategically plan and deliver large-scale, complex transformation programs. She specializes in regulatory reform, digital transformation, and post-merger integration programs. 

Australia Country Co-Lead

Donna Blake

Having worn many hats in her career including Business Analyst Manager, Product Owner and Coach, the common thread for Donna has always been enabling and creating change.

An experienced change practice leader and executor of large-scale change of all varieties, Donna has particular experience in taking a design-thinking and lean change approach.

Donna firmly believes that building change skills in all roles across all parts of an organisation is invaluable. 

Canada Country Lead

Ken Marchant

Ken is a seasoned change management practitioner with over 15 years of experience across diverse industries and countries in both public and private sectors. 

He specializes in driving transformation that is not only strategic but also practical, ensuring change is effectively implemented and sustained at all levels of an organization.

Czech Republic Country Lead​

Jakub Vetrovec​

Jakub is a change and transformation professional with over a decade of experience across multiple industries and countries . He focuses on aligning people, processes, and technology to build a sustainable future.

Jakub builds internal change capabilities and supports sustainable change. As the founder of the Czech Chapter of the Change Management Institute, Jakub is committed to supporting the growth of the profession locally and globally.

Czech Republic Country Co-Lead

Adéla Suchá

Adéla has over seven years of experience as a project manager, with a strong track record in designing and establishing a project management office that she continues to lead successfully. Working in a fast‑growing organization with frequent acquisitions and implementing data‑driven projects for clients has made change management one of her core strengths and an integral part of her daily work.
 
She focuses on connecting project management, data initiatives, and modern technology adoption with the human side of change. 
 

Ireland Country Lead

Thérèse Walsh​

Thérèse is a senior change management professional with over 25 years’ cross-industry experience leading teams and delivering successful transformations across Ireland, UK, and Europe.

Since setting up her own business in 2014, she has worked with companies across multiple sectors to help them develop their people to deliver significant business change.  

New Zealand Country Co-Lead

Lydia Harris

Lydia is a Change Management Institute, Accredited Change Professional – Master Level, Certified Change Management Professional™ (ACMP) and Prosci practitioner. 

In New Zealand Lydia is an assessor for The Treasury NZ – Organisational Change Management component of the Investor Confidence Rating. Lydia has been consulting in change for nearly two decades. She helps organisations and executives with strategic enterprise-wide change thinking. 

Sharon Paine

New Zealand Country Co-Lead

Sharon Paine

Sharon is an experienced Change Manager with over 15 years of experience in change programmes across both the public and private sector. She has extensive experience in leading technology change, embedding organisational culture change, and developing new ways of working.

As a practitioner, Sharon is passionate about enabling impacted employee focused change, building change leader capability and improving organisational change agility.

UK Country Co-Lead

Soraya Robertson

Soraya is a senior leader who has worked in the aviation, health care, IT and education markets in the UK, EMEA and Asia. Highly experienced in leadership and team development, learning, corporate communications, and change she works to create healthy and high performing human systems.

Soraya gained her certificate in Organisation Development from the NTL Institute for Applied Behavioural Science, holds an
EMCC accredited Coach-Mentoring qualification and is an advanced practitioner in People Centred Implementation. 

UK Country Co-Lead

Katja Norman Buller

Katja has been working in the change space for 20 plus years, supporting Leaders and employees to embrace change. She has worked in aviation for many years, as well as utilities and more recently financial regulation. 
 
Katja is passionate about developing effective, happy teams and driving change capability in organisations. She is a Change Management Accredited Change Professional, Prosci practitioner and certified Change Management Professional.  

USA Country Lead

Melissa Sims

Melissa is the Regional Chief of Human Resources for the Northeast Region of the National Park Service.

She is a graduate of the United States Military Academy at West Point. Melissa holds a Bachelor of Science in Sociology and Systems Engineering.  Melissa also holds a Master of Science in Human Resources, as well as a Master of Business Administration and is currently pursuing her PhD in Communications.

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