Three leading global authorities on advertising effectiveness are worried enough about the efficacy of advertising and the impact it has on business results that they have joined forces to present new data and observations in Cannes next week on why a triple jeopardy threat is a clear and present danger to the global industry. They go so far as to call for an overhaul in how advertising award shows like Cannes reward what is deemed the world’s best work. Advertising effectiveness supremo Peter Field, attention economy pioneer Karen Nelson-Field and creativity maestro Orlando Wood warn that ad effectiveness, ESOV and mental availability created by advertising for a brand is crumbling. The ESOV relationship – spending more than rivals to gain extra share of voice relative to market share to outpace competitor sales – risks breakdown. Get the lowdown before it is presented to a global audience in Cannes next week. The trio argue there is a fix.