As I watch the Cubs tonight, they are in next to last place in the division, and have lost almost double the amount of games that they’ve won. Yet on paper, they seem like a team that should be winning many more games. In tonight’s game, the first five of their nine hitters had averages above .300, which is a rare feat. But a team is not merely the sum of its members’ abilities. We can’t understand systems by looking at individual elements. We can only understand the team by watching the team.