Inside the Metropolitan Museum of Art's Great Hall, a violinist played gently in the background. The famous columns were uplit orange, and cocktail tables were covered with magenta peonies for the launch of Pacsun CEO Brieane Olson's new book, "Co Created: The Cultural Strategy That Redefined Pacsun." I'll be the first to admit that this artsy scene didn't feel like it matched the Pacsun I grew up on with its casual coastal offerings. But the Pacsun of yesteryear is a lot different from what