Under the law, PBMs must allow any pharmacy to participate in their network and allow patients to use their pharmacy of choice.

Jessica Brooks Woods, the outgoing CEO, has been a longtime advocate for health care access.

While few advisors counsel DC plans, they're making progress in converting enrollees into clients.

"As employees cling to their jobs for security, retention alone can give employers a false sense of stability, even as wellbeing, engagement and productivity quietly erode," said Todd Katz, head of U.S. Group Benefits at MetLife.