Destined for failure?

Editor's note: A previous version of this article mentioned Guitar Center, which has been removed due to incorrect information. The Motley Fool regrets the error.

Companies that seem healthy often lose their mojo due to rising competition, shifting industry trends, bad management decisions, and the decision to take on too much debt. Those trends sank big companies like Toys R’ Us and Radio Shack in recent years, and plenty of other companies could suffer that fate this year. Let’s take a look at nine companies that desperately need to turn things around.