Deliberate clock management, We line up and go on first down, but on second down if the gain is less than 5 yards we take our time, if more than 5 yards we line up and go. Third downs are also more deliberate on longer yardage. This might allow the coaches more time to select the play or it might be to give the defense some rest if it looks like the drive might stall. I actually like the play result management of the clock, I think this makes a big difference on the endurance of the defense and keeps other defenses off guard on if we are going fast or taking time.