Whether in the gym or inside an organization, real transformation starts with a clear roadmap and the right coach. As both a certified personal trainer and an experienced IT, risk management and process improvement leader, Sarah brings a unique ability to guide people through change—building new habits, strengthening skills, and creating momentum.

Sarah and Dawn have partnered for years across major ERP and technology-driven change initiatives. Their complementary strengths and shared approach make them a trusted, effective team for clients navigating complex transformation. In fact, Sarah’s expertise is embedded in nearly all of Envoy’s engagements, providing continuity, insight, and hands-on guidance that supports successful adoption and sustainable outcomes across industries.

With nearly 20 years of experience across Duquesne Light, PPG Industries, U.S. Steel, and KPMG, Sarah is known for improving processes, building strong relationships, and driving alignment. Her background spans IT audit, security, change management, release management, and large-scale ERP deployments—always with a focus on clarity, structure, and practical coaching.

As a personal trainer, Sarah helps individuals build confidence and sustainable habits. In the workplace, she applies the same philosophy: meet people where they are, provide a clear plan, and support them every step of the way.

Jenn Rillera is an Organizational Change and Customer Experience leader with 20+ years of guiding global teams through complex technology and process transformations.

A PMP and PROSCI practitioner, she blends structured change leadership with deep customer-success experience to ensure adoption, alignment, and measurable business impact. Jenn led Cisco’s 21,000-global user Salesforce transformation and managed a $47M enterprise portfolio, partnering with Fortune 1000 clients to improve engagement, retention, and revenue.

Known for her human-centered, strategic approach, she translates complexity into clear action, leverages story-telling as a powerful communication tool, empowers leaders through change, and delivers sustainable outcomes that elevate both employee experience and customer value. 

Most recently, Jenn collaborated with Envoy on a critical recovery effort for a large charitable organization that had experienced a failed Finance, Human Capital Management, and Payroll implementation, helping leadership, project teams, and frontline staff move out of the “valley of despair,” rebuild trust in the system and process, and restructure teams and the steering committee to capture requirements, communication, and training needs. She also collaborated with the Envoy Team on a multi-year ERP implementation for North America’s largest network of travel centers and fueling stations.

This collaboration provides additional and complementary OCM robustness, bringing extra hands, diverse perspectives, and deep experience to ensure successful adoption and sustainable results.

Barry brings 25+ years of experience as a Project Manager and Program Management Office leader, delivering ERP implementations across Healthcare, Retail, Energy, Finance, Public Sector, Transportation, Utilities, and more. He is passionate about creating high-quality, creative solutions to today’s technical challenges, combining focus, results, and enthusiasm in every engagement. Barry works with organizations to ensure implementation teams are structured for success, projects and workstreams are strategically planned, and programs are executed with a clear roadmap. 

He and Dawn collaborated as Project Manager and OCM Leader, respectively, on a multi-year ERP implementation for North America’s largest network of travel centers and fueling stations, supporting thousands of employees and customers across the continent. Barry’s experience includes leadership roles at Nordic Consulting, Infor, Ciber Global, and Lawson. 

Through partnership with Barry, Envoy can offer clients a seamlessly integrated OCM and PM approach, combining strong project execution with effective change management to drive adoption and results.

With over a decade of experience in education, Karly brings a deep understanding of how people learn to her work as an instructional designer. She creates purposeful and equitable learning experiences, including e-Learning modules, videos, and print guides that inform, engage, and drive growth. 

Karly has developed micro-learnings for Envoy’s organizational change management initiatives, helping client leaders and team members understand the key domains of change management, build awareness, and strengthen knowledge to drive successful adoption and outcomes. 

Through partnership with Karly, Envoy can offer instructional design and training capabilities, providing clients with expertly designed learning materials tailored to their needs.