The Cubs OPS proved to be a poor indicator of run production, their standard deviation on offense was off the charts last year. You typically want a higher deviation from your pitching staff, give a week's schedule worth of runs allowed (1, 1, 10, 2, 10, 2) you'll likely win 4 of those 6 games. Less deviation will gives you more a dramatic bell curve (4, 5, 3, 6, 4, 4), even though both staffs allowed 26 runs over the 6 games, the 1st team has a better chance of winning more games than the 2nd team. Offensively, you want less deviation; using the same example (1, 1, 10, 2, 10, 2) you'll likely only win 2 of those games. Score (4, 5, 3, 6, 4, 4) and you have a much better chance of winning 3 or more of those games. The Cubs had a slightly higher OPS than STL... Yet, STL scored 3 runs or less in 49 games, while the Cubs scored 3 runs or less in 76 of the games. Almost half of the games the Cubs played, they scored 3 runs or less. 101 games of 4 runs or less for the Cubs .