I just wanted to point out something that robviosuly stated about the whole ennis argument. His shooting percentage is nothing but a percentage and a statistic. There is nothing you can conclude from that without running analyses on it. And I wanted to say that due to the lack of shooting percentage statistics in Ennis' NHL career there is absolutely nothing you can conclude from it (the sample size is way to small). If he had 5 years of data, then someone might be able to conclude that statistically a season's worth of shooting percentage was higher than it should be and there is a reason to believe he would regress.
I'm not claiming to be a expert on statistics, but I do have a few years experience.