Marlborough Public Schools in Marlborough, Massachusetts, has announced the appointment of Sarah Casey and Tara Sobaleski as principals for the 2026-27 academic year. Sarah Casey will take over as principal of Marlborough High School on June 1, 2026, succeeding Stephen Sierpina, who is leaving for a new opportunity. Casey brings 15 years of educational experience, currently serving as the director of alternative education, where she oversees various programs and staff evaluations. She holds a Master of Education in Organizational Management and an Education Specialist degree. Tara Sobaleski will become the principal of Charles W. Whitcomb School on July 1, 2026, following Angela House, who will transition to the role of assistant superintendent. Sobaleski, also with 15 years of experience, is currently the grade 6 assistant principal at Whitcomb School and has held various leadership roles in education. Both appointments reflect the district's commitment to recruiting and retaining high-quality staff focused on enhancing student success.