Selig can pretty much do anything. Best Interests of Baseball, and all that. No he cannot. There is no best interests of baseball going on here. If he sides with one of the counterparties that would be a big no, no. If he says. "guys you have until X to get this done", that's another matter. But I don't even think he'd do that. Well yeah, he'd set deadlines if he did anything. I don't think anyone was suggesting that he'd take a side. The question wasn't whether Selig would do something. It was whether he could. And he could. He could tell the Red Sox "You guys are dumb, I'm in charge of you now" and release Epstein himself before burning down Fenway, if he wanted to. His powers are almost unlimited.