High schools are not necessarily following the NFL’s lead to remove players from the field following concussions, and college policies vary widely. “‘I think most schools are already not returning players with concussions to games; I know that’s what we do,’ said Paul Berkner, team physician for Colby College, which plays in Division III. ‘But it’s inconsistent across the country. For those who don’t, the N.F.L. rule will empower the rest of the Division III schools to do the same.'”