In a completely rational society, the best of us would be teachers and the rest of us would have to settle for something else.

Welcome to Hendy Avenue

Hendy Avenue Consulting was founded in 2013 with a mission to attract and retain the most talented people in the country to teaching and leadership by supporting school systems to treat them as the professionals they are, invest in their development, celebrate their impact and pay them what they’re worth.  We believe that investing in great teachers and leaders has the potential to dramatically change the landscape of education in our country and the lives of millions of children.

Hendy Avenue Consulting is a certified Women Business Enterprise located in Brooklyn, NY. We partner with districts, states and charter management organizations nationwide to strengthen their talent practices.


Sarah (Coon) Rosskamm, Founder

Sarah founded Hendy Avenue Consulting with a deep commitment to ensuring all students have excellent educators supporting them to reach their full potential. With nearly 20 years of experience in public education, Sarah believes developing and celebrating excellent educators is the foundation for great schools.

From her very first consulting project supporting the Delaware Department of Education to talent-focused projects across the country, Sarah brings her strengths in change management, communications and stakeholder engagement to all of her partners. Sarah is immensely proud of the team she’s built and is grateful for the wonderful partners we’ve been able to help meet their goals.

Before starting Hendy Avenue Consulting, Sarah was the Senior Director of Talent Development for Achievement First, a network of over 30 achievement-gap closing charter schools in New York, Connecticut and Rhode Island.  In this role, Sarah was responsible for the Teacher Incentive Fund (TIF) funded AF Teacher Career Pathway designed to develop, recognize and reward excellent teachers. Sarah joined Achievement First in 2008 as a Broad Resident in Urban Education.  Prior to joining the residency, she was the founding Executive Director of the University of Pittsburgh’s Learning Policy Center. Sarah’s interest in education policy developed as a teacher in low-income communities and she pursued this interest as a Coro Fellow in Public Affairs. Her classroom experience includes teaching fifth grade during the founding year of the KIPP San Francisco Bay Academy and teaching first grade as a Teach For America Corps Member. Sarah holds an MPM from Carnegie Mellon University and a BA in Human Services from George Washington University. Sarah lives in NYC with her husband, a regional superintendent, and their two sons. Together they lead the education non-profit, Revive The Dream.

Grant Newman, Consultant

Grant joined Hendy Avenue in January 2015 because of his belief in the potential of all students when supported by excellent teachers and leaders.  During his time at Hendy Avenue, Grant has partnered with a wide-range of clients, drawing upon his instructional expertise and talent strategy experience. Grant’s engagements include development and launch of KIPP Texas-Houston’s teacher career pathway, talent strategy for Hebrew Public, charter reauthorization for the SUNY Charter School Institute, and teacher development and leader coaching in New York City, Philadelphia, and Delaware.

Before joining Hendy Avenue Consulting, Grant was the Director of Planning and Communications for the NYC Department of Education’s Office of English Language Learners. In this role, Grant supported the implementation of key policy initiatives and led the strategic planning, project management and communications work of the office. Previously, in the Office of Teacher Effectiveness, Grant supported the implementation of Advance, New York City’s teacher evaluation and development system, through the design and delivery of resources for school and network based staff. Prior to joining the NYCDOE, Grant worked as a classroom teacher and Grade Level Chair at Achievement First Bushwick Elementary School in Brooklyn, NY. During his tenure at AF Bushwick, Grant served as a Leadership Fellow and lead developer of a network-wide Common Core-aligned literacy curriculum.

Grant holds a BA in Political Science from the University of Delaware, a M.ED. in Childhood Education from Hunter College, and an MBA from the Kenan-Flagler Business School at the University of North Carolina Chapel Hill. Grant is a Teach for America alumnus and former Fellow with America Achieves. Grant lives in Brooklyn with his husband, who together are proud parents of a rescued French Bulldog.

Jessica Wilson, Consultant

JW Headshot Aug 2017

Jessica joined Hendy Avenue in September 2017 because she has a passion for improving outcomes for children through supporting the adults who serve them. During her tenure at Hendy, Jessica has led several projects focused on talent strategy, including the Independence Mission Schools as they aim to implement a more rigorous instructional framework, and to design teacher leadership positions to support that framework; the Delaware Department of Education as they aim to revise and reinvent their teacher evaluation framework; and Promise Academy, a drop-out recovery high school in Cleveland, as the school re-starts to continue to serve youth in Cleveland.

Prior to joining Hendy, Jessica served as the Executive Director of Talent Impact at the Cleveland Metropolitan School District (CMSD). In this capacity, she managed the implementation of evaluation and performance management systems for all CMSD employees, including teachers, school leaders, administrators, and support staff. Jessica also managed the district’s licensure and certification work, ensuring that all educators were properly licensed, and supporting educators to attain and maintain licensure appropriate for their role in schools. Prior to joining CMSD, Jessica was a Project Director at TNTP. During her tenure at TNTP, Jessica led district diagnostics in Florida examining district’s success in implementing new college and career-ready standards, managed the creation and implementation of the teacher evaluation system in Newark, New Jersey, and led teacher career ladder staffing in Pittsburgh Public Schools. Jessica also managed the creation of the TNTP Core rubric, TNTP’s teacher observation and development rubric aligned to the Common Core State Standards.

Jessica holds a bachelor’s degree from Saint Louis University and a Master of Science in Public Policy and Management from Carnegie Mellon University. She lives in Cleveland with her husband, two young children, and dog Sailor. Parenting children in elementary school is providing Jessica with a whole new perspective on teaching and learning in schools.

Jeremy Abarno, Consultant

Jeremy Abarno

Jeremy joined Hendy Avenue Consulting to contribute to the work the team does to grow the leaders and teachers who are responsible for providing the conditions for students to thrive. Jeremy will support Hendy Avenue’s work by providing coaching and professional development for school and network leaders, curriculum design, implementation and instructional consulting, as well as advisement on comprehensive talent strategy.

Jeremy started as a teacher in East Harlem in 2000 and has dedicated his career to the children of New York City. He served as the Principal at PAVE Academy public charter school. Prior to joining DREAM, Jeremy was the Managing Director of Mathematics and later Talent at Ascend Public Charter Schools in Brooklyn, a network of nine schools serving more than 4,000 students in central Brooklyn.

Before joining Hendy Avenue, Jeremy was the Chief Talent Officer of DREAM in East Harlem. In this role, Jeremy led the development of DREAM’s overall talent strategy including recruitment, professional development, workforce planning and human resources for DREAM’s schools, afterschool and community programs. Jeremy holds a Master’s in Special Education from City College and a School Building Leader license from Baruch. He is a graduate of New York University in elementary education. Jeremy lives in Brooklyn with his wife and three children.

Why the Name "Hendy Avenue"?

In this work we talk a lot about the needs of adults. We talk about politics and data. We talk about communication and operations. But at the end of the day, this is about kids. This is about making sure every child has a great education. Hendy Avenue is the name of the elementary school Sarah attended and reminds her of being a child. This name helps to make sure we’re always focusing on the impact for students.

Consulting Partners

In order to provide the best possible service to our clients, we partner with exceptional colleagues with key areas of expertise including:

  • Allison Rogovin: Developing exceptional hire processes and tools, interview coaching, management coaching
  • Chris Habetler: School culture design, turnaround, and training
  • Evan Rudall/Alyssa Whitehead-Bust: Strategic planning, school reviews, instructional systems design and implementation, district portfolio support
  • Jeana Marinelli: Leadership development and pipeline programs, coaching for school leaders and school leader managers, school leader sustainability
  • Noble Story Group: Leadership development

What people are saying

“Sarah is one of the most knowledgeable people in the field about the design and implementation of educator effectiveness systems. In addition to her deep content knowledge and experience, she has great operational judgment and a keen, practical sense of how to get things done. She is also always a pleasure to work with. I recommend her heartily!”

– Dan Weisberg, CEO, TNTP

100% of clients report that they are extremely or very likely to refer Hendy Avenue Consulting to others.

“KIPP Austin has benefited tremendously from the expert consulting and support of the Hendy Avenue team. The resources and best practices they made available to us led to a comprehensive plan for the implementation of our own Teacher Career Pathway and the opportunity to learn from those that have designed and implemented similar systems in their districts already. Working withSarah is a dream; she is smart, organized, and optimistic – all qualities you need to take an undertaking of this size from an idea to a reality!”

– Emily Schneider-Krzys, Senior Director of Talent, KIPP Austin Public Schools

“Grant Newman’s commitment to student learning serves as the driving force behind his success as a teacher, district leader and consultant. Grant is able to draw upon varied experiences and deep practical knowledge in his work to support a wide range of initiatives relevant to schools and districts across the country. His ability to engage with diverse stakeholders, develop innovative ideas, and tackle complex challenges makes him a valuable partner to those looking for guidance and support in their efforts to increase teacher and leader effectiveness.”

– Anne-Margoriet Roberts, NYC Department of Education Office of Teacher Effectiveness

“Sarah has been an invaluable resource in spearheading Coney Island Prep’s work to revamp our teacher evaluation system. She brought with her a wealth of knowledge on the subject, and has a unique ability to think about such a system from a variety of perspectives, including new teachers, veteran teachers, teacher coaches, and principals. Sarah took the time to learn about what makes Coney Island Prep different and unique, listened to what we wanted to get out of a new evaluation system, and worked to achieve that. We would not have been able to do this work without her.”

– Jake Mnookin, Executive Director, Coney Island Prep

“One of our mission-critical partners at the Delaware Department of Education has been Hendy Avenue Consulting.  Hendy’s leadership is comprised of people who have designed, led, and refined tools with high degrees of success.  Their expertise, notably in the arena of educator effectiveness and professional learning, has been invaluable.”

– Christopher Ruszkowski, New Mexico Public Education Secretary (former Chief Officer, Teacher and Leader Effectiveness Unit at the Delaware Department of Education)

“The coaching and regular classroom observations have enabled me to grow exponentially as a teacher. I have learned more about how to teach in the last couple of years at Achievement First because of the Teacher Career Pathway than I did in the 15 years prior as a teacher.”

– Teacher, Achievement First

"Grant has been a collaborator and thought partner in the process of taking teacher evaluation practices and turning them into opportunities for coaching yielding measurable improvements. His guidance in this process has helped us become more accountable, consistent and thoughtful about continuous improvement."

– Jill M. Lenihan, Instructional Coach, Academia Antonia Alonso Charter School

"Hendy Avenue training, collaboration, and feedback are first rate and important for helping Positive Outcomes Charter School move our teachers to the fullest potential."

–Steve Norman, Dean of Academics and Instruction, Positive Outcomes Charter School

"Very quickly into our project, it felt as if Hendy Consulting was just an extension of our team. The mutual give-and-take of ideas and sharing of tasks--in addition to the strategic thought-partnering--is what led to the efficient, impactful success of our project."

–Joshua Taton, Independence Mission Schools

"The team at Hendy Avenue is professional, thoughtful, and operate as a fluid team. They helped us not only to be strategic to get the job done, but pushed us to think about how we would grow and develop our strategy to moving our work forward in the future."

– Kim Kassnove, Chief Talent Officer, Hebrew Public Schools 

"Hendy is worth the bang for the buck! They are extremely organized and accommodating and knowledgeable!"

– Evelyn A. Edney, Ed.D., Principal, Dover High School

100% of clients report that their experience working with Hendy Avenue Consulting is extremely or very positive.