From my experience, internal presentations are inconsistent at best. Whether someone is pitching a new idea to their stakeholders or your sales manager is presenting new sales tactics for the upcoming quarter, it's very important that each audience is fully engaged. Reasons that they would disengage could be anything from poor visual design, complex and unclear messaging, slides that are too distracting, or maybe what's being presented looks more like a novel. Not to mention that this same situation is being replicated in the very next meeting room over and the very next office over...and over...and over. You get the idea.