Other PC rivals, such as Acer, have been rocked by management changes in recent weeks.

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But it also comes from management gurus such as Gary Hamel, who, in The Future of Management, observes that technology changes and grows by leaps and bounds all the time, but corporate management has barely changed in 100 years.

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Although the Chicago-based carrier's costs are now greater than those of its rivals, it should prove relatively easy for management to push through changes that make United competitive, such as lower wages and more flexible working.

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There he had instigated a management revolution, introducing such radical (for New York) changes as budgeting, setting goals and measuring performance.

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Money manager Dwight Asset Management, for example, now is considering changes in its asset mix, such as boosting allocations to government securities, "to appease the demands of some of the wrap providers, " says Matt Gleason, head of stable value.

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