We're pretty far past the point in the season where current record has some decent predictive value. that's fine, but the cubs are leading the cardinals, have a better team on paper than the cardinals, aren't relying on massive achievers to keep winning, have played a tougher schedule (or, the cards have played a very easy schedule), and are 6.5 games better in pythagorean W-L. there is no reason to think the cards might be better, other than complete luck.