The first involves the controversial targeting rule. Although it is a solid rule in theory, the enforcement leaves much to be desired.
Initially, after being flagged, officials could review to see whether or not the player could be ejected, even if the ejection ruling were overturned, the penalty stood. This made no sense as sometimes the hit was perfectly clean, but teams were still penalized 15-yards, although the player stood in the game, it turned out to be more of a win-lose.
The second rule is just mind-numbingly dumb. If passed, the rule would prohibit offenses from snapping the ball prior to 29 seconds being left on the play clock in order to allow for defenses to sub in players. If the offense snaps the ball with 30 seconds or more left on the play clock, they will receive a 5 yard "Delay of Game" penalty.
This directly affects high-tempo offenses such as U.C.L.A and Oregon, etc. It would slow it down and give defenses more time to react. I really don't see the "Player safety" issue as I can't think of a major defensive injury that occurred as a result of defending a hurry up offense.