Isn't that totally besides the point though Jugs? These rule changes weren't instituted to ensure someone doesn't miss playing time or experience a career-threatening lower extremity injury. That's not to imply that players aren't concerned about those possibilities. But compared to the risk of permanent brain damage, the league is right to consider those risks as secondary considerations. There is no question that for some players, repeated concussions cause not just concussion symptoms, but depression, major neuro problems, even suicidal thoughts/impulses later in life. The Libertarian in me says that NFL players know the risks and the NFL should let them play the game. But the NFL is legally (and maybe even morally) culpable and can't ignore the risks to players. The issue of unintended effects like perhaps an increase in career- threatening lower extremity injuries is a separate issue in my opinion, not a reason to allow blows to the head to continue.