While valuations of offensive actions in soccer are, by no means, perfect, they are still significantly more accurate and meaningful than how we evaluate defensive actions and players’ defensive contributions. In a challenge-accepted moment of weakness, we took a stab at better assigning a Goals Added (g+) equivalent for defense: g- (“g minus”). What we’re about to share will blow your mind reinforce just how hard it is to quantify the value of an individual’s defensive actions, but hopefully I can also entertain you down this rabbit hole we’ve been playing around in for more than a year.