The fastest way, I have seen, to get a project moving in the right direction is to draw it out. A drawing can explain or highlight the needed concepts when words can lead to a misunderstanding. Paper prototypes elevate the original drawing's idea allowing discovery of missing details or validating new functionality. Since paper prototypes can be created with a pen and paper everyone can contribute. Especially user testing; users highlight the pros and cons of the journey. Proof of the concept or pivots can occur before expensive development occurs. Saving money, time and numerous headaches.
UX Pin's Paper Prototyping: The 10-Minute Practical Guide
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