From a post by Tom Mucciolo on the Indezine blog.
Designing to the Delivery
“Imagine a presenter who is challenged by verbal fillers (ums, uhs) when trying to paraphrase text, giving the appearance of nervousness. A slide designer could create more graphic images, data-driven charts, perhaps interspersed video, to allow the speaker to “talk around” the visual imagery (cues) with little or no text on the screen.”
The described approach will only work if the presenter knows the material well. Instead of reading a slide, create a visually rich slide that has all the information the speaker needs to convey a message. Less is more.
Read the full post called Slides and Speakers at: http://blog.indezine.com/2012/10/slides-and-speakers-by-tom-mucciolo.html