Product, Service & Design Innovation / Large pieces of paper cover the tables. A few bright sticky notes sprout here and there. Earnest-looking people bent over writing or steeped in conversation ignore their half-eaten lunches. Ideas begin to pop.It’s lunchtime at Sustainable Brands 2014 and we’ve challenged delegates to come up with a vision and concrete plans for answering three big What If questions while they eat: - 9 years ago