A thorough, often drastic reorganization, as of the personnel in a business or government.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "shakeup" in a sentence
"The rationale behind this forthcoming shakeup is that it will give Yahoo a more united front."
"WALLACE: Let me ask you -- we're almost out of time, Governor -- I know the campaign doesn't like to use the word shakeup inside the Kerry campaign, but how else do you explain?"
"One would think this type of shakeup is better done right after an election, so that it’s not a wedge issue by the time people are running again."