One problem I noticed so far with their guidelines is that the play clock is set to :25 for any injury. So with :40 left in the game a third down play just ended and we have a team B injury, we just went from team A being able to run the clock out to play clock set to :25 and forcing team A to run a 4th down play and might give the ball back to team B with :10ish seconds. I guess this also applies to a helmet off too for the defense. I think they should look at making this two situations set to a :40 second play clock.