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Our Executive Advisors

Antoinette Roach Powell, PMP, MA

Founder & CEO | Enterprise Transformation & Executive Advisory

Antoinette Roach Powell is a transformation leader with 25+ years of experience driving enterprise-wide initiatives across financial services, government, and energy sectors. She specializes in operating model design, executive advisory, and large-scale program execution, including oversight of multi-billion-dollar portfolios. Antoinette is known for aligning leadership, clarifying strategy, and ensuring disciplined execution that delivers measurable, sustainable outcomes—improving cross-functional alignment by 50%+ and driving consistent ~10% annual performance gains across complex organizations.

Eric Schantzenbach, FACHE

Operational Excellence | Healthcare Transformation

Eric Schantzenbach is a transformation executive specializing in operational excellence and strategy deployment across healthcare and manufacturing environments. Known for building high-performing teams and embedding sustainable cultures of continuous improvement, Eric brings a unique blend of strategic vision, operational discipline, and people-centered leadership to drive meaningful, lasting change.

Eric Schantzenbach, FACHE

Gina West, MEd

Social Impact | Stakeholder Engagement & Strategy

Gina West is a strategic advisor, social impact and culture change leader with 20+ years of experience across corporate, nonprofit, and public sectors. She specializes in aligning organizational strategy with stakeholder needs, strengthening culture, and driving measurable outcomes through inclusive, data-informed approaches. Gina has led enterprise-wide engagement and investment transformations, overseeing multimillion-dollar portfolios and designing scalable operating models that deliver sustained business and organizational impact. 

Gina West, MEd

Heidi Nyland

Change Management | Learning & Transformation Advisory  

Heidi Nyland is a Prosci-certified change management leader with over a decade of experience driving enterprise transformation initiatives. She specializes in change strategy, training, and communications, improving system adoption, reducing implementation timelines by up to 25%, and increasing workforce engagement. Heidi is known for enabling sustained behavioral change and strengthening organizational readiness for transformation. 

Jessica Vicks

Strategic Communications | Organizational Development  

Jessica Vicks is a strategic operations and communications leader focused on aligning leadership, workforce strategy, and program execution. She has led initiatives impacting 400+ employees and implemented communication strategies that significantly improved cross-functional alignment and engagement. Jessica is known for enabling leaders to communicate clearly and drive adoption in support of transformation outcomes. 

Paula Pierce, MS

Strategic Facilitation | Organization Development | Culture Transformation

Paula Pierce is an organizational effectiveness and culture transformation leader with 20+ years of experience across government, nonprofit, and private sectors. She specializes in strategic facilitation, human-centered design, and organizational development to drive alignment, clarity, and performance. Paula is known for enabling leaders and teams to co-create actionable solutions that strengthen engagement, trust, and measurable outcomes. 

Executive Consultants

Kia Braxton, MS, PMP, ABCP

Program Management | Resilience & Emergency Management

Kia Braxton is a resilience and program management leader with 20+ years of experience

delivering enterprise-wide emergency management and crisis response programs. She has led

large-scale initiatives supporting thousands of personnel and critical operations across

government and private sectors. Kia is known for strengthening organizational readiness and

building coordinated, high-impact responses in complex, high-stakes environments.

Stephanie Johnson, MPH, MBA

Enterprise Transformation | Operations & Strategic Execution

Stephanie Johnson is a senior transformation and operations leader with 20+ years of experience driving complex initiatives across global organizations ranging from $500M to $3B+. She has overseen multi-million-dollar portfolios, established PMO and governance structures, and improved execution outcomes by 30–40%. Stephanie is known for translating executive vision into scalable operating models and driving disciplined execution across complex environments. 

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Stratum Collective Partners LLC

P.O. Box 70531, Chevy Chase, MD 20813

202.578.7618

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