The implementation of the Common Core State Standards (CCSS) over the coming years will provide an opportunity for K-12 and postsecondary educators to share and use data effectively to support alignment between the sectors and reduce the need for remedial education. This brief describes how these groups can work together to make the most of data and their shared expertise to increase the proportion of students who are college ready. It also provides a framework for collecting data and information on the critical goal of improving college readiness, including data on related outcomes, processes, and inputs. In an upcoming report, the authors will provide recommendations for key data and other information that can be used to support specific goals and strategies being developed by Affinity Network teams. (Contains 9 references and resources and 2 footnotes.)