“DraftKings and FanDuel have an early lead in identifying and serving a population of likely bettors. Both say they would welcome the change. DraftKings CEO Jason Robins told Bloomberg in November that it would consider all its options, including becoming a sports book, if the legal restrictions were lifted.”
https://www.bloomberg.com/news/articles/2018-01-17/spread-of-legal-sports-betting-could-upend-daily-fantasy-sports