They build on each other. Without the foundation of Why, the What and the How are prone to ramble and be forgettable. Having a weak "What" (without a "Why") us

They build on each other. Without the foundation of Why, the What and the How are prone to ramble and be forgettable. Having a weak "What" (without a "Why") usually evokes boredom. It's not obvious to me why I should listen to the idea being presented. And that also drives the "How" - see what medium will best get your point across, otherwise it's east to fall into the trap of making slides of something that needs to be shown, or vice versa.