The Center for Strengthening the Teaching Profession operated the New Teacher Alliance (NTA) from 2006-2009, sponsored by the Paul G. Allen Family Foundation. Inverness Research evaluated the NTA through the four years, measuring the growth in district and school capacity to provide effective support to new teachers, and learning from new teachers about their needs and about the benefits of the support they received. This brief distills key lessons learned from the research, along with implications for all levels of the system, from the state to the new teachers.