Raiders team president Marc Badain has resigned just before the start of training camp after helping orchestrate the team’s move to Las Vegas. Owner Mark Davis announced Monday that Badain is leaving the organization and that executive vice president and general counsel Dan Ventrelle will take over on an interim basis. Badain went from being a ball boy for the team to a 30-year career with the organization. He eventually became the chief financial officer for the team and was an assistant to former CEO Amy Trask.