Until August 23rd few people would have described Steve Ballmer as "retiring". Microsoft's chief executive has played both tiger and Tigger: snarling (toothlessly, as it turned out) at Apple's gadgets; and bouncing, with a whoop, onto conference stages to extol his company's wares. But retiring he is, within a year. Mr Ballmer's departure is a surprise. He had announced a reorganisation of the company only in July and had hoped to oversee much of the change. Some celebrated his going: Microsoft's share price went up by 7.3% on the day the news broke.
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