if that were the case, I would think it would show up in P/PA and IsoD. P/PA v. lefties - 3.73 v. righties - 3.73 IsoD v. lefties 61 v. righties 62 they are not appreciably more patient against righties than they are against lefties. And that's the problem. Unless I'm reading that wrong, aren't they about the same? Yes, that's the point. They are impatient against everybody. It kind of works a little against hard throwing righties. It does not work against soft tossing lefties. And its' not true at all that the entire league is this way. If it were, all soft tossing lefties would have great numbers. The NL has a 770 OPS against LHP, and it's just 750 against RHP. The Cubs rank 8th, at 751 against RHP, but rank 13th at 733 against LHP. This was also a problem last year, when they were middle of the road against RHP but dead last against the lefties. I think the problem is a couple things. 1, they are impatient, so guys who make their living my staying out of the zone (soft tossers - often lefties) can thrive against the Cubs. The Cubs thought the strikeout was their biggest enemy a couple years ago, so they stressed putting the ball in play for a while, and that leads to a bunch of weak swings at bad pitches that result in easy outs. 2, the Cubs often try and fix the general offensive problem by going after lefties. They constantly try and find lefty power, as opposed to just guys who can hit. This has left them with some serious issues with guys who just can't hit lefties at all, like Jones and Pierre, and when they tried to fix it with a platoon, they relied on guys like Pagan and Monroe, who didn't hit lefties either. That also goes along with the tendency to load up with righties against LHP, which meant relying on many backups to start, which just weakens the lineup in general.