A field goal in overtime from John Kasay gave the New Orleans Saints a thrilling 26-23 win over the Atlanta Falcons as they took over control of the NFC South in the National Football League on Sunday.The Pittsburgh Steelers, meanwhile, continued their rise in the AFC with a 24-17 victory over Cincinnati.The main talking point in Atlanta will be coach Mike Smith\'s decision to go for it on fourth down on his own 29 yard line - a brave move which failed to come off and allowed divisional rivals the Saints to win the game with Kasay\'s 26 yard kick.The Falcons had fought back well in the fourth quarter with Tony Gonzalez collecting on a 20 yard Matt Ryan touchdown pass and then Matt Bryant\'s 27 yard field goal leveling the scores.Smith\'s decision to run the ball with only inches to make a first down didn\'t come off when Michael Turner failed to advance and that gave Drew Brees the ball knowing he need only make some forward progression to get within field goal range.A 12 yard pass to Jed Collins was followed by a six yard run from Mark Ingram to set up Kasay for the decisive kick. Brees passed for a total of 322 yards and touchdowns.The increasingly impressive Houston Texans moved to 7-3 with a 37-9 victory over the Tampa Bay Buccaneers - Matt Schuab threw for 242 yards and two touchdowns while the Texans\' ability on the ground was evident again with Arian Foster, Ben Tate and Derrick Ward all running in touchdowns.Tampa have now lost their last three games and have fallen to 4-5, trailing the Falcons and the Saints.