To start, we might as well revisit the difference between command and control, or at least the accepted version of that difference: control is the ability to throw the ball into the strike zone, while command is the ability to throw the ball to a particular location. While we can easily measure the first by looking at strike-zone percentage, it’s also immediately apparent that the second skill is more interesting. A pitcher often wants to throw the ball outside of the zone, after all.

We’ve tried to put a number on command many different ways. I’m not sure we’ve succeeded, despite significant and interesting advances.

You could consider strikeout minus walk rate (K-BB%) an attempt, but it also captures way too much “stuff” to be a reliable command metric — a dominant pitch, thrown into the strike zone with no command, could still earn a lot of strikeouts and limit walks.

COMMANDf/x represented a valiant attempt towards solving this problem by tracking how far the catcher’s glove moved from the original target to the actual location at which it acquired the ball. But there were problems with that method of analysis. For one, the stat was never made public. Even if it were, however, catchers don’t all show the target the same way. Chris Iannetta, for example, told me once that his relaxation moment, between showing a target and then trying to frame the ball, was something he had to monitor to become a better framer. Watch him receive this low pitch: does it seem like we could reliably affix the word “target” to one of these moments, and then judge the pitch by how far the glove traveled after that moment?

How about all those times when the catcher is basically just indicating inside vs. outside, and it’s up to the pitcher to determine degree? What happens when the catcher pats the ground to tell him to throw it low, or exaggerates his high target? There are more than a few questions about an approach affixed to a piece of equipment, sometimes haphazardly used.

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A tough thing about analyzing pitching is that it’s a moving target. You can get a decent sense of what a pitcher is like right now, and then he can completely change his approach over the next month and become a different pitcher. There’s evidence of this in the data: a pitcher’s exit velocity becomes stable relatively quickly, but then that stat’s predictability doesn’t actually improve as the sample increases. In other words, you can see what the pitcher’s got now, but what about tomorrow? Ask us then.

This is all relevant to Tyler Chatwood. You might have thought you had an idea of who he was as a pitcher — great sinker, uses his four-seamer for whiffs, and doesn’t have great secondary stuff, so it’s all about the ground balls. That’s who he was! It isn’t who he is right now, though. I had to ask him about who he is right now when I had the chance.

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Once someone who’s erred has done his time, apologized, and satisfied society institutionally, there’s the matter of going on with life. This is true with every crime, however horrible, and the things Matt Bush did were horrible. He’s served his time — 39 months — and hopes we can forgive him. But that’s almost of secondary concern to him, at this point: life, and living, remains.

And Matt Bush, now perhaps the closer for the Texas Rangers, is doing his best to be a good baseball player because that’s the path in front of him. He believes any success he experiences in that role is due to the help he’s gotten. “Our pitching coaches are great, man, really great,” he suggested multiple times in our talk before a game against the Athletics this week.

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Take a look at Charlie Blackmon’s defensive charts and you’ll notice that he has a good side, one where he’s made a higher percentage of catches than the other. On the one hand, that seems strange: humans are largely symmetrical creatures. On the other, maybe it makes perfect sense: most people have dominant hands and eyes and move better in certain directions.

Nowhere is the latter point more painfully clear to me, personally, than on the basketball court. As much as I practice going to my left, I usually do something very silly when I attempt the feat in a game. If I get to the left and actually get to the hoop, my mechanics fall apart when I get there, and I end up doing a strange thing with my right hand that leads to cuss words more often than points.

So when I saw this map for Blackmon, I figured it was all about that first step. See those hits over his left shoulder that are colored blue? Those are relatively high-percentage catches that have fallen into play against him. Must not be stepping well in that direction, I figured.

But when I asked the outfielder about those hits and his first step, he laughed. First, he thanked me for highlighting his shortcomings. Then he said something surprising — “I prefer the ball to my left,” he said. “There’s something I don’t like about running towards a ball to my right.”

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Last Thursday, baseball got weird and the Mets and Marlins played past midnight. After Travis d’Arnaud hit the go-ahead homer in the 16th, the catcher slowly trotted around the bases, admitting afterwards that he needed the invigorating effects of that moment just to complete the task. “The emotions of the home run helped lift my legs a little bit,” he said to James Wagner after the game regarding his tired knees. After the dust had settled and all the exhausted quotes were collected, though, the teams had to play another game later that day. What sort of effect would the marathon game have on that game?

Intuitively, you might expect the teams to have trouble scoring runs the next day. Tired legs, tired minds, tired bats, you’d think. Turns out that instinct is accurate… sort of.

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It’s very frustrating to do baseball analysis in the offseason — there’s no actual baseball to analyze! It’s very frustrating to do baseball analysis during spring training — the results don’t matter and we don’t get all the same stats! It’s very frustrating to do baseball analysis in the first few weeks — it’s all a small sample size! The lesson overall? It’s very frustrating to do baseball analysis.

But it’s also very rewarding, and so we make a go of it even when we’ve barely completed 10 games of a 162-game season. One thing to which we turn at this point of the season is pitch velocity and movement. My personal sense is that these things become meaningful quickly. Very quickly.

While there’s research that has pushed me in that direction, I hadn’t seen work that looked at precisely how quickly movement and velocity stats stabilize, or become meaningful. So I asked Brian Cartwright to run the numbers.

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The Angels have an interesting situation at the back end of their bullpen. It’s not unique in that it’s a timeshare — in their own division, the Athletics are adamant that Sean Doolittle and Santiago Casilla are both closers, depending on the handedness of the opposing ninth-inning lineup — but it’s still a little different. Andrew Bailey and Cam Bedrosian, the two heads of that monster, have two unique pitches that power their success.

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Alex Cobb once had a power changeup so nasty we gave it a nickname. The Thing even had progeny: Cobb taught the grip to Jake Odorizzi, and Thing Two is now the latter pitcher’s best secondary pitch.

Likely the product of what appears to be an organization-wide focus on the changeup, Thing One was an impressive pitch. Unfortunately, it’s gone. At least for now. For the moment, it doesn’t resemble what it used to be, and Cobb is using it less and less often with each start. The weird part is, Cobb might still be okay, anyway.

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