In baseball, luck is a tricky concept. In some cases, it’s used to describe an event that’s within the normal distribution of outcomes but far from the mean. In other cases, what we call luck might actually be the first signs of an outlying skill for which we simply lack a sufficiently large sample to identify.

We’ve developed a new understanding on one kind of luck in recent years — namely, the sort that occurs with a batted ball. With Statcast data, we can look at the shape and size of a ball in play and try to decide what the batter “deserved” from that sort of ball in play. Then we compare it to actual outcomes. The difference between the observed and expected outcome is luck.

What if you want to look at a luck on a specific pitch type, though? How would you do it? You could look at the results on the pitch and basically use the Statcast-type process from the other side of the ball. What sorts of balls in play did that pitch produce, and what sort of results should those balls in play have produced? The problem with that approach is that you’re slicing a pitcher’s repertoire into small samples when you start talking about balls in play off a specific pitch. Even David Price, for example — who led the majors in innings last year — allowed fewer than 300 balls in play on his most frequently thrown pitch, the fastball. Secondary pitches are, almost by definition, thrown much less often. Variance isn’t the exception in such cases, but the rule.

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Here are some undeniable facts.

1. Dellin Betances was the third-best reliever in baseball by WAR last year.
2. He has the third-best strikeout rate, all-time, among pitchers who have thrown at least 250 innings.
3. He has 22 career saves, with 12 of them coming last year.

Betances, eligible for arbitration for the first time, filed for a $5 million salary this winter; the Yankees countered at $3 million. This was the second largest gap for any player that got to the filing stage this year, only $100,000 behind the $2.1 million difference that Drew Pomeranz ($5.7M request) had with the Red Sox ($3.6M offer), and unlike the Red Sox, the Yankees decided to not split the difference and instead head to a hearing.

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Pitchers need to get used to a different ball when they reach the big leagues. The variance is slight, but it is nonetheless noticeable. That was the opinion of four pitchers to whom I spoke, and facts back up their feelings.

According to a source within Major League Baseball:

• The MLB ball is made in Costa Rica, and the MiLB ball is made in China.
• The MLB balls cost more.
• There are some differences in the materials, such as the kind of leather.
• Tests are conducted, and the performance of the balls are in line with one another. Even so, major-league pitchers on rehab assignment are allowed to use MLB balls during their minor-league outings.

That last bullet point seems especially telling. Given the availability of that option, there is clearly a difference.

Here is what the handful of hurlers — all of whom pitched in both MLB and Triple-A last season — told me in mid September. Along with the physical feel of the spheroid, pitch movement and the carry of fly balls were also addressed.

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On the Construction and Feel of the Ball

Ben Heller: “It seems like it’s a bit tighter in the big leagues. And the ball is slicker, too. The way they rub it down here makes it a little slicker in your hand, so I find myself trying to get a little moisture to counteract that.”

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There are different ways to turn a team around. That’s probably an obvious thing to say, but it’s true. Another thing that’s obvious and true: teams are made of humans. Because of that, no turnaround is entirely uniform in nature.

Even so, a team might emphasize certain traits when attempting to rebuild or improve. On-base skills, power, etc. Some of those turnarounds are easy to follow; others, less so.

Given the relatively short history of defensive metrics, the turnaround of team defense hasn’t been thoroughly chronicled, and yet teams have certainly made it a priority. Just last year, the Astros and Indians exhibited improvements in the field in a way rarely matched. Looking further back, it’s possible to find other teams that have accomplished the same feat. The question, though: how did they it? Maybe it’s possible to use past successes as a road map for current teams! So, let’s find the next Indians and Astros.

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Chris Carter finally signed! With the Yankees, for $3 million plus incentives. Chris Coghlan also finally signed! With the Phillies, on a minor-league deal for $3 million plus incentives. On the one hand, these players couldn’t be any more different. But there are similarities, too, if we look at them through the lens of the market and its needs.

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We tend to form memories poorly. In middle school, my band teacher was fond of telling us that if you only played two parts of the song correctly, to make it the beginning and the end, because most people wouldn’t remember anything else.

So it may be with Andruw Jones. If you pressed most people on what they remember most about Jones, there’s a decent chance that they’d recall him as the 19-year-old who homered twice in the 1996 World Series and also as a really fat guy who was terrible in his 30s. In between those two endpoints, though, he had a Hall of Fame career.

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The Indians just signed Brandon Guyer to a very modest contract extension. If you know Guyer, it’s for one of two reasons. A small number of you might know Guyer personally. A greater number of you know Guyer for his skill at being hit by things. Guyer is a specialist when it comes to finding an alternate path to first base. Here he is, doing his thing:

Call it cheap if you want, but what works works. Despite being a part-time player, Guyer just led the league in hit-by-pitches. For his career, he’s been hit by a pitch 66 times, while he’s been walked on four balls 61 times. Just last season, Guyer was hit by a pitch in 9% of his plate appearances, a rate which was 10 times higher than the league average. Ten times higher than the league average! Guyer is a statistical weirdo, but you have to love him for it. Unless, you know, you’re pitching.

Guyer is a bit of a competitive annoyance because of his specialty. And yet, as the freaks go, he’s out-classed. Guyer specializes at one arguably cheap way to reach base. Jacoby Ellsbury specializes at another. We’ve gone over this before, but we’re doing it again. Last year, Guyer’s rate of reaching by HBP was 10 times the league average. Last year, Ellsbury’s rate of reaching on catcher’s interference was 94 times the league average. Ellsbury managed one of the most extraordinary statistical accomplishments in the history of the game.

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The New York Yankees are supposedly rebuilding — and, in a sense, it’s true. They didn’t make the playoffs last season, and they haven’t seen the American League Division Series since 2012. They started the winter by trading the guy who had been their starting catcher for the past three seasons. Those are all some traits that might be representative of a team in transition.

On the other hand, they haven’t dropped below .500 in forever. You have to go back to 1992 to find the last time the Yankees failed to break even. They’ve never been the bad team that one now commonly associates with a tear-down effort. Also, they’ve spent some money in free agency this offseason, on Aroldis Chapman and Matt Holliday. These aren’t the types of players/deals — closers, short-term deals for aging superstar — that teams who are far from contention typically sign/make.

So who are the Yankees? If you had to pick between pretender and contender, you’d have to land on the latter. Let’s take a look at the potential starting lineup. As always, the venerable Mike Axisa has done much of the legwork for us. In his recent piece on how the Yankees may split Brett Gardner and Jacoby Ellsbury in the lineup, here was his best guess as to how the Yankees’ lineup will shake out this season.

1. LF Brett Gardner
2. 2B Starlin Castro
3. C Gary Sanchez
4. DH Matt Holliday
5. SS Didi Gregorius
6. CF Jacoby Ellsbury
7. 1B Gregory Bird
8. RF Aaron Judge
9. 3B Chase Headley

Not bad, right? Let’s take a look at the projected wOBAs for all of the AL teams, according to our current depth charts.

The Yankees are in the middle of the pack, but there are a few caveats here. First, the projections may be conservative on Bird and Sanchez, which is understandable in both cases. Certainly, we shouldn’t expect Sanchez to repeat his blistering .425 wOBA from last season, but the .348 wOBA for which he’s pegged for seems like it could be a little conservative. The early returns from our FANS projections seem to agree, pegging him for a .355 wOBA.

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On Tuesday, we looked at the best pitches in baseball last year when judged by whiffs and grounders. One thing we learned in that exercise: they were all thrown by relievers. Makes sense. They get a lot of advantages when it comes to short stints and leveraged situations. Let’s not hold it against them because the rest of the reliever’s life is very difficult. On the other hand, let’s also celebrate the starting pitchers separately, because many of them have pitches that are excellent despite the fact that they have to throw more often, to batters of both hands.

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Mike Mussina never won the Cy Young Award. He made the All-Star team only five times over his 18 years in the big leagues. He won 20 games just once, in the final season of his career. His career ERA mark is closer to 4 than it is to 3. In other words, it’s not difficult to see why Mussina hasn’t been inducted into the Hall of Fame yet, given the traditionalism of the electorate. There have been many worthy candidates who’ve accompanied Mussina on the ballot since he first appeared there, of course. Nine players have been elected since Mussina first became eligible, all of them slam-dunk candidates.

Whatever the arguments against him, though, Mike Mussina is almost surely a Hall of Famer. Hall of Fame voting has already technically concluded, so this column serves less as an appeal to voters and more of a general appraisal of the situation, if nothing else. Also, have you seen baseball news lately? I haven’t either, so here we go.

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