Scott Goodson's tip on how to select an advertising agency

Scott Goodson, founder of Strawberry Frog posted a little piece on how marketeers should do when they are about to select a new advertising agency.
“Better agencies are not suppliers, they are more akin to business consultants and, as such, partners for your business. I stress partnership because the better communications firms are focused more on ideas and solutions and less on the distribution of media.”
Good point!