Concussions will always be a part of sports, especially, at the highest level with the speed and power of these elite athletes. These players voluntarily choose a vocation with a relatively short career, but the opportunity to set their family up for life financially. We can talk all day about the NHL's actions in this matter, but the players themselves haven't helped themselves. Plenty of players sustain head trauma because the union hasn't mandated wearing full helmet protection, concussions are happening when players are also hit from the front and side of the head.
We also have to remember the scores of pro athletes who are still performing at high levels, long after their careers ended. I strongly believe a three-pronged approach will reduce head injuries, and get the problem under control. First, technology and medicine will play a major roles. Equipment will improve, not only in terms of protection, but tracking collisions as well. And medically, the day will come when we have a real baseline on the CTE levels, and active players will be able to have their brains scanned for this information. Second, teams need to do a better job of remove starters when games have already been decided. Numbers of players have been injured this way. Thirdly, the players must be honest about continuing to play, and taking the offseason cognitive tests accurately.