>That market doesn't exist because it requires buy in from the business, businesses that see the value in targeted and performance driven advertising do it in house because its so valuable, other businesses just don't do it because they see no value in it and they see no value in it because they don't do it.

That goes against the entire concept of the advertising agency though. If advertising is so important, why staff it out to a 3rd party when you could do it in house? If this in house thing was the way to go, why is Maddison Ave so powerful?