If I can read it, I don’t need you
If you are making a speech and everything you say can be read on the PowerPoint slides then you as a speaker are not needed
If you are making a sales pitch and everything is covered in the brochures then you are not needed
PowerPoint presentations, sales brochures and other graphics should compliment your pitch not be able to replace you. The pictures should make your words stronger. The words should make your pictures more persuasive. If not, something is no longer needed and it might be you
Have a great day!