Some people prefer making presentations having only some general idea of what they are going to say before hand. Other people spend a good deal of time thinking about exactly what they want to say and how they want to say it. Both presentation styles are perfectly valid.
Agreed that both presentation styles work. That said, regardless of the "strategy", the delivery needs to be clean to be seen as authoritative (unless a tremendous amount of respect as been pre-built). Imagine your CEO delivering an all-hands with 47 ums and reading from a script -- how much confidence would that instill?
The content is great and communicated well.
Some people prefer making presentations having only some general idea of what they are going to say before hand. Other people spend a good deal of time thinking about exactly what they want to say and how they want to say it. Both presentation styles are perfectly valid.