Jo Bertram, O2’s Chief Digital and Strategy Officer, outlines the need for technological innovation in order to achieve growth in the future. At the O2 Blue Door Conference in September, I had the opportunity to present my thoughts on how business growth in the future will be fuelled by technological innovation. As Chief Digital and Strategy Officer at O2, innovation is at the front of my mind every single day. Before joining O2 my career included working with start-ups, as…