Accountable care organizations (ACOs) are taking a variety of approaches to building health IT infrastructures, according to a forthcoming report from Leavitt Partners and KLAS Research. It's clear that healthcare organizations with integrated clinical and financial systems have an early lead in the race to assemble these new healthcare reform models. ACO leaders agreed that they need clinical information systems that can enable them to do population health management. But the applications they were investing in varied from general-purpose business intelligence software from IBM or Oracle to more targeted applications from smaller vendors. Lack of integrated systems, fragmentation of third-party applications for population health management hamper many ACOs.