Engineers who insist on doing everything themselves underestimate the talent and skill needed to succeed in other domains, and thus also shortchange their own ideas and ambitions. Designers who refuse to interface with the technical side of things, both in using and harnessing some amount of technical knowledge to understand the limits and possibilities of product, or in using engineers to design products (solutions) to fit needs (problems), miss out on opportunities to create the most effective products possible.

From “On designers in Silicon Valley” by Nina Khosla.