It should be required that anyone who wants to speak in public has to have a license. They would take a test that would measure their ability to speak and if the person fell below a certain threshold they would not be allowed to do a presentation.
I am sitting in one of the most boring presentations I have ever been in. The material is dry but what is worse the guy giving the presentation is just awful. What makes it worse is that this is the second day and only about 1 hour was at all pertinent to me.
I don't think it takes much to be a good presenter. All you need is to know your material beforehand and speak with confidence. Most people who give presentations read straight from their slides. THIS IS AN AWFUL WAY TO GIVE A PRESENTATION. Never ever ever read to people in a presentation. It is boring and it insults everyone's intelligence.
Whenever I give a presentation I make sure I know the material backwards and forwards. I only use my slides to remind me of the topic I'm going to cover. I never use slides as a placeholder for my brain. If I don't know enough to give the presentation without having to constantly refer to my slides I don't know enough to be giving the presentation in the first place.