A lot of those moneyball decisions seem to have very marginal impacts, and I feel like the differences in team quality across the league were large enough that

A lot of those moneyball decisions seem to have very marginal impacts, and I feel like the differences in team quality across the league were large enough that those subtle statistical advantages didn't matter very much. Moneyball only became a big thing after the luxury tax was implemented when a lot of teams were basically at parity in terms of player ability and small tactical advantages suddenly became meaningful.