• by Wayne Friedman , Staff Writer, July 28, 2009

Quentin George, chief digital officer of IPG’s Mediabrands, said at the OMMA Ad Nets event in Los Angeles there is lot of waste with ad networks â€" 40%.

He says his buys outperform search most of the time. But it still comes down that premium inventory still performing better. “There is built in waste in the system,” says George.

George also notes attribution is a problem. “Agencies play a big role in this.”