Boston’s Citi Performing Arts Center (formerly the Wang,) struggling with financial losses and an anemic slate of performances, is looking to partner with other arts groups in the city in an effort to get back on its feet. “Under the plan, the Center will become what it calls a ‘virtual performing arts center.’ The idea is to reduce financial risk by relying less on revenue from the Center’s hard-to-fill theaters while spreading the Center’s brand across a swath of revenue-generating programming elsewhere in Boston and Massachusetts.”