In episode 15 of the Shack Show, golf architect Gil Hanse joins Geoff Shackelford to prep us for the Charles Schwab Challenge at Colonial Country Club. Gil talks about Hogan's influence at Colonial, what he'll be watching for this week and his top-10 golf courses. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.