The effect of the Rangers' depth and Tortorella's willingness to use it is obvious: By playing less, a defenseman is less liable to make a mistake out of fatigue.
Whether or not Shell's bosses made an honest mistake in booking those four billion barrels of oil now matters less than how they handle what has happened.
Yes, it is a great advantage to be able to correct things quickly, but isn't it a greater advantage to not make the mistake in the first place, rather than have it ricochet around the Internet, and have readers think less of your publication?