Know what your contribution is for
Before writing a speech, ask what the committee needs to understand or decide. A clear purpose helps you choose which evidence and ideas belong in the contribution.
Make the connection visible
Explain how your evidence supports your position. Avoid adding a statistic simply because it sounds impressive. A relevant, well-understood fact is more useful than a list you cannot explain.
Leave room for dialogue
End with a specific proposal or question others can respond to. The purpose of speaking is to contribute to the conversation, then listen to how others develop it.