Sarah Stringer @String_a_ling Sarah Stringer is the svp, head of innovation at Carat U.S. Sarah leads Carat’s teams in being "brave" in their day-to-day work by embracing a test-and-learn framework to understand new ways to achieve business results for Carat’s clients. 3 Ways AR Creates Customer Value That’s Practical, Yet Personal Performance Marketing By Sarah Stringer July 3, 2018 Augmented reality connects with consumers in a way VR can't.