Oak Street Health opened its first primary care center for seniors in underserved communities in 2013. By 2022 the company had 169 centers and a market valuation exceeding $10 billion. Oak Street created value by accepting risk-adjusted, capitated payments for Medicare enrollees and reducing the expected spending for these enrollees through high-quality, high-touch primary care. In 2023 CVS Health acquired Oak Street on the thesis of substantial synergies across its various businesses. Which among these synergies was most important to prioritize, and what tradeoffs might be created by pursuing these opportunities?