"Aren't wireframes the designer's job?" The benefits to including your team in this process and achieving better (and more efficient!) visual communication.
Jeff Gothelf on getting out of the deliverables business: http://www.jeffgothelf.com/blog/lean-ia-getting-out-of-the-deliverables-business/
Audrey Crane on napkins: https://designersandgeeks.com/events/when-you-get-a-napkin-sketch
Wireframe kit: http://bryneshrimp.com/supply
Lingo app: http://www.lingoapp.com