By Gerry Shih SAN FRANCISCO (Reuters) – Microsoft Corp on Monday named three executives to its cloud, devices and Xbox gaming divisions in one of new Chief Executive Satya Nadellas first management shakeups. In a public email, the worlds largest software maker promoted Scott Guthrie to head of the cloud and enterprise group, the $20 billion division that Nadella helmed before replacing Steve Ballmer as CEO in February. Former Nokia Oyj chief executive Stephen Elop – at one time considered a candidate to replace Ballmer – will join Microsoft as executive vice president of the devices group, reporting to Nadella, after Microsoft closes its $7.2 billion acquisition of the Finnish device manufacturer.