PR pros rightfully tout the discipline's role in the marketing mix. But what do leading execs from advertising, media, and interactive marketing make of it?

Over the past several years, John Osborn, president and CEO of ad giant BBDO New York, says he's had more exposure to the PR discipline than ever - and he's not complaining. In fact, he describes PR and advertising as two puzzle pieces that lock perfectly together.

"PR has always played an important role, but now ...