Sprint Nextel Sputters Along

Car enthusiasts and auto mechanics the world around know the distinct sound of an engine that isn't firing on all cylinders. In much the same way that a coughing engine saps power and performance, Sprint Nextel (NYSE: S) has been knocking and pinging for almost two years now. The good news is that the company's latest earnings report shows there's still an opportunity for a tune-up.

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