Bernstein analyst Lance Wilkes notes that Amazon (AMZN), Berkshire Hathaway (BRK.A; BRK.B) and JPMorgan (JPM) announced the appointment of Atul Gawande as the CEO of their new healthcare joint venture, effective July 9th. The analyst sees this appointment as indicating an emphasis on enablement of change in the system, along with thought and policy leadership, and believes the appointment of an operating oriented President or COO could refine the outlook for scope. Wilkes continues to see this venture as negative for drug supply chain and self-insured employer oriented MCOs.