Worth a look, as apparently the rules committee is looking to slow down the high-tempo offenses by penalizing teams for snapping the ball too quickly into the play-clock. The committee members claim that injuries on defense because of a lack of opportunities to sub out is the reason for the changes. But is there any evidence that there have been more injuries because of high-tempo offenses? Or are the rules changes more self-serving? Would be interesting to know the makeup of the rules committee (i.e. mostly defense-minded coaches, pro-style offensive coaches for whom the rules changes would be a net positive or have little effect).