Understanding Your Audience
The problem with having a stock presentation is that is doesn’t take into account your the knowledge of your audience.
Beginning cooks are not going to enjoy a talk on the nuances between the differing genus of nutmeg. Professional cooks are going to walk out on your presentation on how to boil pasta.
If your audience already knows who your group is, move on to the problems that you see in the world and how you are trying to solve them.