Throughout a week of panels and networking at this year’s Advertising Week, the issue of transparency (or lack thereof) is sure to take center stage, as marketers scrutinize their agencies through audits in the wake of a recent bombshell industry report from the Association of National Advertisers.

“This is the first time that we really have any paper trail that really alludes to what has been rumored and discussed in rooms, but never really public, for a long time,” Ron Amram, vice president of media at beer-maker Heineken, said on the latest episode of the WSJ Media Mix podcast.

Read the full Wall Street Journal article here.