1. The speech, slides and handout are 3 different things. Repeat this with me: three different things. The speaker should have a speech, a few slides to underscore key take-away points and a handout applicable for the task at hand. Supergirl hint; if you don't already know how to use the notes feature, open Help in PowerPoint and do a keyword search for "add notes".
2. Start each PowerPoint presentation from scratch. Avoid reusing old files as much as possible. Opening the old files gives the speaker permission to recycle all of those slides and you lose a lot of ground.
3. There is no law commanding each slide to have a title and body. Remember, key take away points that can be interpreted by the audience rapidly. One sentence, max. Seriously, if you can make it shorter, do it. The speaker should be in the spotlight, not the slides.