India, June 5 -- The question Asha Sharma cannot quite answer is the one everyone keeps asking. Asked Wednesday at Bloomberg Tech's annual conference in San Francisco about whether Xbox would pull its games back behind an exclusive wall, the company's chief executive described the situation with a candor that stopped just short of a policy: it is, she said, a tough topic.

That two-word phrase carried more strategic weight than it appeared to. In the same interview, Sharma articulated a framework that will govern every Microsoft first-party release going forward - not a return to blanket exclusivity, not a continuation of the multiplatform experiment her predecessor Phil Spencer launched, but a game-by-game deliberation that treats each ...