There was significant improvement in the detection and treatment of concussions during the 2010 season, a key NFL medical consultant said Monday. It all started with the puzzling decision to let Eagles linebacker Stewart Bradley back into the season opener after he suffered a concussion. Dr. Richard Ellenbogen cited the way concussions to two Seahawks were handled in a playoff game at Chicago as proof the league had taken major steps to ensure such injuries are treated properly. Asked if the incident with a woozy Bradley being allowed back on the field in Philadelphia spurred the improvement, Ellenbogen said, "Had that not happened, we may not have had the NFL sideline examination [for concussions] this year."