Summer Gathercole (she/her/hers) is the Managing Director of SHG Advisors. Summer has a Bachelor’s of Science degree in Accounting and is a former CPA. Upon moving to Washington, D.C. in 1998, Summer left her public accounting career and began working directly with homeless and low-income individuals to help prepare them for the workforce and place them in jobs. Summer went on to found and launch a nonprofit workforce intermediary. In 2007, Summer was recruited by the former Mayor of DC, Adrian Fenty, to run the $113M D.C. Department of Labor. Most recently, Summer led Governor Polis’ statewide efforts to reform the behavioral health system – which included bringing together numerous system partners inclusive of providers, hospitals, first responders, law enforcement, local agencies and municipalities, nonprofits, advocates, businesses, educational institutions, and – most importantly – everyday people from across Colorado. The behavioral health system and its partners are intrinsically connected to homelessness, its causes, and possible solutions. Summer has a deep understanding and appreciation for the challenges in addressing behavioral health needs and homelessness, and the multi-faceted actions needed to successfully initiate system reform.
Cullen Dilldine (he/him/his) is a strategic leader in human services, specializing in process improvement, project management, and cross-sector collaboration to build equitable, high-performing systems. With a Master of Social Work from the University of Denver, he has driven organizational transformation across government, healthcare, and nonprofit sectors, focusing on homelessness, behavioral health, child welfare, and equitable access. Cullen has led technical system enhancements to streamline Medicaid eligibility determination for children in out-of-home placements or receiving adoption assistance while building programmatic capacity for sustainable improvement. Cullen has also led other high-visibility projects, including the initial programmatic design of the Ridge View Residential Community Community and technical assistance initiatives with Colorado communities to better understand and respond to homelessness crises. Skilled in navigating political, administrative, and financial constraints, he ensures that policy and operational changes align with long-term service delivery goals. Passionate about addressing systemic barriers in social services, Cullen leverages data-driven strategies to create impactful programs that strengthen communities and improve lives.
Yumiko Dougherty (she/her/hers) brings 15 years of experience designing and leading strategic planning efforts with diverse partners to create a shared vision and roadmap forward. She was Chief Strategist for Colorado’s planning and implementation of the federal Family First Prevention Services Act, engaging with hundreds of diverse stakeholders around child welfare reform. Yumiko also served as the inaugural Division Director for Strategy and Engagement at the Behavioral Health Administration (BHA). She authored the BHA’s first strategic vision and plan, and launched its first advisory council consisting primarily of people with lived experience. Prior to working with the State, Yumiko was at the Colorado Human Services Directors Association (CHSDA), which comprises leaders from all 64 counties. She traveled to every corner of the state, focusing on the unique strengths, opportunities, and challenges of rural and mountain communities.
As a consultant, Yumiko recently developed strategic plans for the State’s child welfare system and infant & early childhood mental health system, drafted a strategic framework around CDHS’s housing and homelessness efforts, and led strategic planning efforts at the county-level around child maltreatment prevention.
Rebecca Mayer (she/her/hers) has dedicated the last fifteen years to collaborating with diverse partners to develop and implement system-wide responses aimed at solving homelessness. With a strong background in strategic leadership, Rebecca served as Deputy Director for the Metro Denver Homeless Initiative (MDHI) the Metro Denver Continuum of Care (CoC).
She also spent two years working with the Balance of State CoC, learning about the unique needs of rural communities and their specific challenges in addressing homelessness. She returned to MDHI in 2024 to serve as Interim Executive Director, continuing her commitment to creating sustainable solutions to homelessness through community collaboration and systemic change.
Tanya Smith-Evans is the Director of the New Strategies Program at the McDonough School of Business at Georgetown University. In her role as Director, Tanya focuses on the overall delivery of the program and on direct engagement with nonprofit leaders attending the program from across the country. Prior to her role at Georgetown, Tanya spent 17 years with Community Wealth Partners, a consulting firm focused on turning the bold visions and goals of funders, nonprofits, and communities into reality. As a Senior Consultant, Tanya worked as a trusted advisor and thought partner to nonprofit clients and boards to build capacity and drive strategic decision making in multiple industries including employment, education, housing, human services, and community development. She collaborated with nationwide funding entities to implement executive-level leadership initiatives across groups of grantees and guided numerous nonprofit organizations through sustainable income strategy planning and implementation. Tanya started her career with Kearney, a global management consulting firm, and spent 10 years guiding a range of nonprofit and Fortune 50 clients through the development and execution of operational and strategic initiatives. Tanya also serves as an executive coach to an array of nonprofit and philanthropic leaders, focusing on both personal and organizational leadership challenges.
Tanya holds a B.S in Commerce from the University of Virginia and an MBA from Kellogg Graduate School of Management. She enjoys traveling the world with her soldier husband and their three teenagers.
Carolyn Taylor, (she/hers) brings a unique blend of organizational insight, strategic coordination, and operational efficiency to every role she undertakes. Currently serving as a Project Coordinator at SHG Advisors, Carolyn excels at orchestrating complex project workflows, ensuring on-time delivery of client deliverables, and managing logistics for high-level meetings and events. Carolyn holds a Master’s degree in Organization Development from Loyola University Chicago and a Bachelor’s degree in Sociology from Hamilton College. With a career spanning over three decades, Carolyn brings a thoughtful, people-centered approach to administrative leadership, driven by a passion for service excellence and organizational growth.
Dan Treglia, PhD, (he/him/his) is Associate Professor of Practice at the University of Pennsylvania, Instructor in the Center for State Health Policy at Rutgers University and President of Social Policy Analytics. He has spent 17 years in government and academia conducting interdisciplinary and collaborative mixed-methods research focused on bridging clinical and community-based systems to address systemic housing and health inequities facing marginalized communities. Prior to entering academia, Dan was Deputy Director of Research for New York City’s Department of Homeless Services. He has provided research and TA to communities seeking to address homelessness across the US and Canada. Dan has a Masters in Public Policy from Harvard’s Kennedy School and a PhD in Social Welfare from the University of Pennsylvania’s School of Social Policy and Practice.
Cassy Westmoreland (she/her/hers) has spent over a decade in homelessness services, with 8 years of that experience in Colorado. She has worked as frontline staff in shelter and outreach programs, as a community advocate and organizer for homelessness strategic planning, and as a leader in administering over $50 million in state and federal funding for homelessness response, gaining national recognition from the Department of Housing and Urban Development (HUD) and the Environmental Protection Agency (EPA) for program efficiency. Cassy’s work has focused on rural Colorado communities, including managing the Fort Lyon Supportive Residential Community, a model that combines behavioral health services with housing programs for individuals struggling with homelessness and addiction in Bent County, CO. There, Cassy spearheaded performance improvement initiatives to prioritize healthcare cost reduction and housing stability for graduates. Her efforts also focused on rural economic resilience, from enhancing local workforce support to catalyzing economic development initiatives centered on the campus. Cassy holds a Master’s Degree in Public Policy from the University of Denver, along with a Bachelor’s in Social Work and a Bachelor’s in Psychology from the University of Georgia
