I guess you could say that the Angels are sputtering. After sprinting out to an astonishing 13-3 record, the club has lost five out of six, getting swept by the Red Sox and then losing two of three to the Giants. It was a fairly unremarkable weekend for the most interesting player in baseball. Shohei Ohtani was in the lineup twice, and he even batted cleanup. Though he recorded three singles, he didn’t drive in any runs, nor did he score any himself. He struck out two times on Sunday.

Meanwhile, context be damned, it was a tremendous weekend for the best player in baseball. In the eighth inning on Friday, Mike Trout homered. In the third inning on Saturday, Mike Trout homered. And in the eighth inning on Sunday, Mike Trout homered. Trout leads baseball with nine home runs. Over the weekend, he homered to left field, to center, and to right.

There exists a recurring joke(?) that baseball statistics start to matter the day that Trout assumes the lead in WAR. Barring a DL stint, it always feels like an inevitability. As of this Monday morning, Trout leads all players in WAR according to FanGraphs. And Trout also leads all players in WAR according to Baseball Reference. Here we are, and, you know, we haven’t checked in with Trout in a while. He seems to…be…better?

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As I was researching a Mookie Betts article yesterday, I kept coming across various suggestions that Betts was thriving because of a more swing-happy mindset. Maybe that’s true on some level, but Betts isn’t actually swinging more. He continues to run one of the lowest swing rates in either league. The key for Betts has been pulling the ball in the air. He’s hunted pitches to drive, and he’s driven them as he wanted. There are few better pull hitters in the game.

That being said, while Betts hasn’t turned into anything particularly aggressive, he has given a little push to his in-zone swing rate. He’s cut down on his out-of-zone swing rate. There’s no benefit from swinging at would-be balls. And as for the rest of the Red Sox around him — this has become a different-feeling lineup. The Red Sox, as a team, have changed their approach, bringing to an end a long era of patience.

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It’s not entirely clear anything was wrong with Mookie Betts in 2017. Yes, he finished with a wRC+ of just 108, after the previous season’s 137, but those numbers can occasionally mislead. Consider the Statcast-based expected wOBA, available to query at Baseball Savant. Betts, in 2015, had an expected wOBA of .335. In 2016, it was .336. In 2017, it was .341. I wouldn’t necessarily call that conclusive, but it’s evidence that Betts was just hurt by a little bit of bad luck. He remained a perfectly good hitter all the while.

In 2018, Betts has an expected wOBA of .602. He leads all qualified hitters in wRC+. Tuesday night, in a game started by Shohei Ohtani, Betts went deep three times. Betts won’t keep this up, because no one could keep this up, but it’s worth it to look under the hood. Betts’ scorching start has been a consequence of his hitting to his strengths.

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A favorite question of the baseball audience is, when does a small sample start to have meaning? There are a few general rules of thumb, but in large part it’s still a question, I think, because there is no perfect answer. It can be a gut thing, or it can be a matter of magnitude. I don’t care if a batter starts out 6-for-10 with three home runs. I’d care a lot more if a batter were to start out 8-for-10 with six home runs. Some performances over small samples are so very good — or so very bad — that there almost has to be signal. Even over a short amount of time, it’s hard for a player to fluke his way into the extremes.

Over the winter, the Rockies invested heavily in their bullpen. You could argue they invested *too* heavily, but, well, this is the bullpen era, and you’d figure the Rockies, of all teams, might need to keep theirs both deep and refreshed. It’s a bullpen with plenty of interesting arms, but the most important reliever might be Adam Ottavino. In the past, Ottavino has been genuinely dominant. Last season, he came off the rails, with a walk rate of 16%. With a bad Ottavino, the Colorado bullpen might not be a strength. With a good Ottavino, it would go four or five deep.

It’s early. But, as early as it is, Ottavino has faced 34 batters, and he’s struck out 22 of them. He’s walked one guy, he’s allowed one run, and he’s given up two hits. Nearly half of all swing attempts against Ottavino have missed. Nearly half of all swing attempts against Ottavino pitches in the strike zone have missed. Only Josh Hader might rival what Ottavino has done. This is a small sample that’s so good, it’s crying out to be investigated.

The results are almost unbelievable. It turns out Ottavino also has an exceptional process.

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Last year’s Brewers were a surprise contender, hanging around the race until the end of the season. It’s always a good thing when a team arrives ahead of schedule, but it can force a rebuilding organization to strike a new balance of short-term vs. long-term considerations. One decision the Brewers made was to call up pitching prospect Josh Hader so as to use him out of the bullpen. Hader was a starter with promising stuff, but the Brewers wanted later-inning reinforcements. To Hader’s credit, he thrived in his new role, starring down the stretch as a fireman.

It can get tricky when starters pitch in relief. Fans often worry that a prospect might end up stuck in the bullpen, accumulating fewer innings. Throughout the offseason and into the spring, there were questions regarding Hader’s present and future. Would the Brewers stretch him back out, or had Hader found his place? We’ve all grown up thinking of starters as being more valuable than relievers. Yet, in this age, starters are throwing fewer innings than ever. And as for Hader specifically — well, the matter isn’t so tricky when you’re talking about maybe the most valuable reliever around. Josh Hader was already good. Now he’s simply sensational.

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It’s probably nothing, right? It’s probably one of those things we only notice because it’s the start of the season, and there’s not enough signal yet to drown out the noise. You know how early statistics can be. Ryan Flaherty is batting .333. Gary Sanchez is batting .122. Every so often, Flaherty will bat .333, and every so often, Sanchez will bat .122, but most of the time we don’t care, because most of the time we don’t even know. That’s the beauty of baseball come July and August. The sheer size of the data samples prevents us from looking like idiots.

So, it’s probably nothing. I don’t want to alarm you. At the same time, I’m finding something hard not to notice. I have to at least raise this as a point of conversation. You’re familiar with Freddie Freeman. Amazing hitter. Best player on the Braves. For a month and a half to open last year, Freeman performed like a league MVP, before getting unfortunately hurt. There’s nothing weird about the fact that Freeman looks good again. Got a 208 wRC+. There is, however, something weird about this.

Now Freddie Freeman isn’t swinging. All right.

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The Phillies wouldn’t have signed Jake Arrieta if they didn’t think they had some chance to win right away. Arrieta would improve that case himself, and his acquisition addressed what had been a thin pitching staff, but even a few months ago, the Phillies were expressing some cautious optimism. Aaron Nola, obviously, is incredibly good. The team was willing to dismiss Jerad Eickhoff’s rough 2017 as a consequence of injuries. And much of the organization was excited about Nick Pivetta. With Nola, Eickhoff, and Pivetta, the Phillies could dream on a rotation that could hold its own, even before Arrieta came along.

Pivetta now has three 2018 starts under his belt, and the last two have been terrific. In fairness, we’re talking about a Marlins lineup that’s not at 100%, and a Reds lineup that’s even further from 100%. The competition has not been stiff. But Pivetta’s struck out 16 of 47 batters, without issuing one single walk. There’s improvement in the results, and even more important than that, there’s improvement in the process. As a rookie in 2017, Pivetta flashed a promising weapon. It would appear he’s now using it with more confidence. It’s time for the National League to get accustomed to seeing Nick Pivetta’s curveball.

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I know that, just yesterday, the Yankees allowed 14 runs. They allowed eight runs the game before that. They allowed seven runs two games before that. By park-adjusted ERA, the Yankees presently rank 20th in baseball, which is not very good. This is hardly the time to celebrate the pitching staff.

On the other hand, by park-adjusted FIP, the Yankees presently rank fifth in baseball. By park-adjusted xFIP, the Yankees presently rank second in baseball. By strikeout rate, they’re first. The Yankees have been great! They just haven’t gotten the results. Perhaps this *is* a good time to celebrate the pitching staff.

Yet this isn’t really a celebration at all. Rather, it’s an observation. It might be an observation of a good thing, or it might be an observation of a bad thing. Could even be an observation of an ultimately insignificant thing. But, the Yankees’ pitching staff? Collectively, they’re out there on an island. There’s no other pitching staff like it.

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