Finally, some good news from the vexed Dia Art Foundation: Itís hired Philippe Vergne as its next director. Vergne, 42, has been curator for over ten years at the Walker Art Center in Minneapolis and is currently deputy director there. A champion of art and artists, he sees everything, has a keen mind, a good eye, writes well and has curated excellent shows. Vergne isnít just some out-of-towner lucky to make it in the big time; heís been on the hiring radar at both P.S. 1 and the Museum of Modern Art, too. Taking the Dia job is a real risk for his career.