Hmm, I'm not too up to date on the attributes of the modern day roster for the yankees, but I seem to recall some guys with low vision, so I guess it's a decent assumption that you need a few more strikeouts. I'm also going to guess that your team isn't good enough to lead the league in strikeouts either, even though NY does have a nasty bullpen. I mean, someone has to lead the league in these catagories, so the first thing to establish is if it is reasonable for you to do so or not.
For your batters, decreasing Human Timing will increase your strikeouts due to bad timing (don't worry, the ideal timing window remains unaffected), while decreasing Human Foul Frequency will increase your strikeouts due to location (both out of the zone and on the edges).
For pitching do the opposite for the CPU, though decreasing either timing or location strikeouts will have a knock on effect, raising your ERA due to longer ABs and eventually more offence. You may in this case want to consider that you and your staff have earned 1rst in strikeouts, or maybe your staff is just having a really good year. Also, do you have a lot of coaches that add to K/9 or movement?
Edit: Something else I just thought of, as ridiculous as it sounds, you might be following the guide a little too well. The down or down/push hybrid combined with a contact swing is a powerful tool when behind in the count and you want to prevent a strikeout. However, can you ever imagine guys like Sanchez or Judge shortening up and just focusing on getting the bat on the ball? Judge seems a little more versatile, but from what (admittedly limited) footage I've seen of Sanchez, I can never imagine him changing his approach at the plate thinking "I just want to get it in play".
I could be wrong about that (I've watched embarrassingly little baseball this year, I usually watch a ton in the early and late parts of the season), but my point is that it's possible you're seeing unnatural numbers because you're taking an unnatural approach at the plate. If this is the problem, you can approach it two ways: You can try and roleplay as the batter you know in real life, or you can say he's taking your coaching advice and that is leading to improvements at the plate.
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