Just thinking out loud here ...
This might be a dumb idea, but could there be something like a "Looked bad on TV" rule? Basically, someone completely unaffiliated with the teams and the league would make judgment calls on "probable concussion?" from afar, using strictly the TV coverage. Not too different from what us fans do on Twitter -- though hopefully, people with credentials like those of Dr. David Chao (for example) would be employed.
One potentially tricky part is that the people doing these judgments would have to be volunteers -- they could not have a financial relationship with the league or individual teams. Maybe it would be kind of a non-profit that could perform this service for multiple pro sports leagues, college football, etc. It would be completely electronic-information based. You wouldn't need a "concussion reviewer" at each stadium, arena, or rink. What you would need is a system -- unofficial or official -- of getting footage of a bad-looking head hit over to a remote concussion reviewer. Twitter reacts to probable concussions in near-real time -- surely 2022's information technology can be harnessed into a more formal framework?
Isn't that what the current "
spotter" system is?
Two main differences:
1) The current spotters are actually at the stadiums.
2) The current spotters don't themselves make the "sit 'em" calls -- their role is limited to alerting team physicians on the sidelines to a potential head injury.
What I'm conceiving of basically takes team physicians and sideline staff out of the equation. No taking/passing sideline concussion tests. No mystery visits to the medical tent. None of that.
That's why I call it the "
looked bad on TV" rule. If the league really, really, REALLY wants concussion issues curtailed, there will have to be some overcorrection -- that is, sitting the occasional player who had a bad head hit but (somehow) did not get concussed.
EDIT: Thinking about this some,
ignatius ... in a formal system and especially in professional sports, you would still want spotters at the stadium. However, their role would be different -- they wouldn't be there to tag the team physicians when they see something. They would be there to upload footage** to the wider remote network of observers nationwide (or even worldwide -- who's to say a neurologist in Australia can't make a call on someone on an NFL game?).
** -
which could be 99% automated so that a non-techie spotter could just press a button to upload the last 60 seconds of game footage or whatever.