Wardell says hospital system open to partnerships. Robert Weisman, Boston Globe, June 2, 2012 Cambridge - The new chief executive of Cambridge Health Alliance says he wants to improve the way medical care is delivered and paid for at the system’s three so-called safety net hospitals, but is also open to forging partnerships that may fall short of outright mergers. Patrick R. Wardell, 59, who arrived here in mid-March from Michigan State University’s Hurley Medical Center in Flint, Michigan, said he plans to spend the first six months working with his board on a plan to strengthen the finances of Cambridge Health Alliance ... Cambridge