The most obvious change at the AT&T National is moving to Aronimink Golf Club, a tree-lined classic in the Philadelphia suburbs that will host the tournament the next two years as Congressional prepares for a U.S. Open. Not so obvious is the role Tiger Woods is playing this week. He is still the defending champion. He is no longer the host. http://sports.espn.go.com/golf/news/story?id=5341108
