Answer:
Lack of Time Management
Run through the speech to ensure it meets time requirements.
Lack of Preparedness
Practice the speech in full before delivery.
Lack of Organization
You can lose credibility by not spending enough time gathering and organizing material.
Lack of Attention to Audience
Make sure you know the audience, or the presentation will be unsuccessful
Lack of Confidence
If you don't have confidence in yourself, you'll risk alienating the audience.
