Language in public speaking doesn't always have to be fresh. In fact, cliches serve a purpose. Even with a youthful audience. If the cliches are exactly the right rhetorical fit for the speaker, then their impact could be profound.
Suppose a union leader addresses an audience who are undecided about the good and bad of the Affordable Healthcare Act. He can bluntly say, "The early bird gets the worm." Then he can go on with, "I was inside the Beltway before dawn having breakfasts with the movers and shakers who can help blow up that law." The image is vivid: The hustler making his way through the bowels of D.C. power.
Not effective would have been to try to be cute, as in "No, I am hardly a morning person. But power seems to rise with the sun."
Cliches which have been effective in pitching for speechwriting/ghostwriting business include:
The edge I bring
What resonates with audiences
The right narrative
Telling the story.
If my pitch were worded more originally, the prospect would be distracted.