The PCPCC 2018 Executive Report examines how the role of advanced primary care, such as the PCMH, may contribute to the success or failure of ACOs. To answer this question, the researchers at the Robert Graham Center and IBM Watson Health utilized qualitative and quantitative methods. The qualitative methods included two literature reviews and the input of an expert committee. The quantative research included analysis of the 2014 Medicare Shared Savings Program (MSSP) data set and NCQA PCMH data set.