Jeff Hall was in that first USGA group to check out Erin Hills in 2007 while he was in Wisconsin on a site visit to Whistling Straits ahead of that year 's U.S. Senior Open .
Jeff Hall is the USGA 's managing director of rules and open championships .
Jeff Hall , the USGA 's managing director of rules and open championships , was in that first USGA group to check out Erin Hills in 2007 while he was in Wisconsin on a site visit to Whistling Straits ahead of that year 's U.S. Senior Open .