WBZ-TV's Jon Keller reported Wednesday that Gov. Charlie Baker demanded and received resignations from four members of the Massachusetts Health Connector board. According to reports, the resignees were John Bertko, Rick Jakious, George Gonser, and Jonathan Gruber, all of whom served under former Gov. Deval Patrick. Gruber, a professor of economics at Massachusetts Institute of Technology, is perhaps most notable in this group for advising the Obama administration in the creation of the Affordable Care Act. Prior to that, he advised then-Gov. Mitt Romney in developing health care reform in Massachusetts. The New York Times even nicknamed him 'Mr. Mandate.'