This blog post comes to you live from ad:tech Chicago 2009. On September 1, Dave Friedman, president of the Americas for Razorfish (my employer) joins a panel of agency executives to discuss the role of modern agencies with their clients. Participants include David Hernandez of Tribal DDB; Drew Ianni chairperson of ad:tech; and Chris Miller of DraftFCB. The conversation is moderated by Tim Hanlon, VivaKi Ventures.