Accountable care organizations (ACOs) are responsible for the financing and delivery of services to more consumers than ever before – an estimated 50 million Americans as of 2015. And, in that population, ACOs also serve consumers with complex, chronic conditions. The very same consumers using a large proportional share of health care resources (see What Are The Spending Stats On Chronic Conditions?). In this issue of the OPEN MINDS Management Newsletter, we're focused on the changes in the ACO landscape . . .