Amid growing concerns about how digital advertising solutions are performing for marketers, Havas Group has launched a programmatic system which promises to deliver complete transparency to marketing campaigns. It calls it Client Trading System (CTS), and says it gives clients a control to monitor all aspects of programmatic trading. Marketers desire increasing transparency in programmatic, especially parts which have traditionally been kept hidden, in a metaphorical black box. This is because of recent revelations some agencies have been marking-up prices. Proctor and Gamble (P&G) announced earlier this year it would review all of its agency contracts in order to demand full price transparency over how and where ad money is being spent. “We’ve come to our senses and realized there…