Days after Health and Human Services Secretary Kathleen Sebelius warned insurance companies not to blame higher 2011 premiums on the health reform law, Medicare and Medicaid chief Donald Berwick called for insurers and government to look ahead and work together. "You don't get the level of improvement we need by simply trying harder the same way. You try a new way," he told an industry group Tuesday. "If you want new results, you need a new system." Sen. Pat Roberts, R-Kan., who fought Berwick's nomination, saw a strategy in the administration's mixed messaging, saying in a statement: "It appears that the White House has designated Dr. Berwick as the good cop to Secretary Sebelius' bad cop in their attempts to intimidate and silence private industries' attempts to inform the public about the real world consequences of Obamacare."