Joel Smyth is back with his iconic flex factor series. This week Joel provides you with a lengthy list of Week 4 flex candidates to consider starting or benching to give you the upper hand in your matchup. 0:50 Set and Forget 2:30 Flex Starts 7:20 Double Flex Starts 13:15 Booby Traps 🔔 Subscribe to Yahoo Fantasy: bit.ly/47f7Ui4 🏆 Play Yahoo Fantasy Football: football.fantasysports.yahoo.com 🎓 Play Yahoo College Fantasy Football: college.fantasysports.yahoo.com #YahooFantasy #FantasyFootball