When Justin Wilcox came to Cal, his calling card is the defensive of the ball. There are 4 seasons where Wilcox lead the defense for a Pac-12 team. Those are good data points.
How did a Wilcox lead defense play against Pac-12 opposition?
Taking in data from Sports-Reference I look at how his defenses over/under performed vis-a-vis the average performance of the team. This is a simple difference of means and actual performance, this does not account for the simple variance/Standard Deviation. This means some of the difference can be caused by variance and not be causal by Wilcox’s defenses.