If you only have time for one book about leadership this year, read Shattered, a new autopsy of the Clinton Presidential campaign by Jonathan Allen and Amie Parnes.

Naturally, the book is packed with advice for politicians running for office, but the most valuable lesson applies to any leader trying to move his/her organization to change.

Here's what Hillary did wrong that you need to get right: Create a compelling story that convinces people to get on board.

Even before the Clinton campaign officially began, Hillary's team struggled to develop a strong, cohesive message. Hillary had decided to formally announce her candidacy on Roosevelt Island, New York, in July 2015, and everyone involved knew that her speech had to be meaningful and memorable.

But while Barack Obama "had been relentlessly superb at telling voters why he was running for president," write Shattered's authors, "Hillary . . . was unshakably focused on the trees rather than the forest."

Author Allen and Parnes quote a senior Clinton adviser who said, "This is her deeply held thing: elections should be about policy. There's a textbook quality to her articulation of things."

As a result, members of the Clinton campaign toiled over many drafts trying to create a strong message. But the final speech was lackluster and unfocused, with no "overarching narrative explaining her candidacy, no framing of Hillary as the point of an underdog spear, no emotive power."

Team members like former Obama speechwriter Jon Favreau were left with the sense, the authors write, that "Hillary didn't have a vision to articulate. And no one else could give one to her."

How can you avoid this mistake when communicating change? Do these 3 things :

  1. Develop a laser-sharp story that includes your vision--the desired end state--as well as why you need to change and what the plan is for doing so. Make sure you've answered the question, "What's in it for me?"
  2. Use data and details to support your story--but never let the facts get in the way of the core message. (Remember that employees will really only remember one thing you say every time you talk to them.)
  3. Be relentless about telling your story over and over again in different formats--from a 25-word elevator pitch to a one-hour presentation. Yes, you can use different examples to add texture, but make sure to stay on message (no matter how bored you might get).

Change is difficult enough. That's why your communication needs to be clear, compelling and consistent.