And history suggests that a good one can make the difference between success and failure: look at how Lou Gerstner revived IBM or how Jack Welch opened up General Electric's lead over Westinghouse.
Tells how he revived the Academy.
A voluminous hippie caftan with bell sleeves and a sleek quilted jacket is one example of how designers revived and reinterpreted the tradition.
For more on how Snapchat revived its growth, read our feature piece: "After years of neglect, Snapchat wins in the developing world".
How Justin Timberlake revived an old partnership for the deeply trippy 'Trolls'.
Call him Mr. New Sky: How Jeff Lynne revived ELO for 'Alone in the Universe'.
Dan also points out how Jimmy Fallon revived the Madden curse that has been keeping Troy Polamalu down.
For weeks President Obama and his aides have been debating how to revive the peace process — and how deeply the president should engage.
What Labour needs to do is to rethink its ideas about the state, how politics really functions, and how to revive a progressive agenda with real bite.
The issues dominating the primaries how to get out of Iraq; how to revive the country's reputation; how to govern less divisively don't resonate in the same way in Britain.
