Column: After a step forward on concussions, NFL steps back (Yahoo Sports)

''Oh, is your mommy a doctor?'' Naylor asks. Just when you thought the NFL was done playing those kind of games - voila! - along comes yet another. Last week, it took a big step forward when Jeff Miller, the league's senior vice president for health and safety, finally acknowledged during a congressional round-table that the league believes there is a link between concussions and CTE, something scientists have believed for years.