"Watch you don't scratch the truck!" Nathan Williams shouts good-naturedly to his five-year-old daughter Natalie, who is killing time until her father's interview ends by peddling her bicycle around the vehicles crowding her family's Lafayette driveway. She has been home from Holy Family Catholic School for about 15 minutes, and, despite her impeccable manners, she would clearly like for Dad to conclude his duties as a zydeco celebrity so that he can start performing fatherly ones like gettin...