I've noticed that the refs holding up play to allow the defense to substitute after an offensive substitution seems to be having some unintended consequences. Since the play clock keeps running, the defense can take their time substituting a player and the offense is left with little to no time. In one game on Saturday, the ref held up play until 1 second was left. As you can imagine, the play clock ran out. The refs called a penalty on the offense for delay. When the players and coaches complained, the ref changed it to a timeout and charged it to the offense. What do you think the odds are that the make changes to the rule during the off season?