Transitioning to value-based care reimbursement and managing accountable care organizations (ACOs) comes fraught with specific challenges. Both reports from healthcare organizations and interviews with experts who’ve implemented ACOs tend to show that there are obstacles that need to be overcome in order to run an effective value-based care program. The sheer speed with how quickly providers are expected to transition to value-based care and accountable care organizations may pose problems, but gearing providers toward primary care may help, says Marci Nielsen CEO at the Patient-Centered Primary Care Collaborative.