Lou Trivino, who is 26 years old and six feet, five inches tall, stands up straight when he’s talking to you. He holds his arms — massive, tanned — at his sides, occasionally resting his hands on his hips or clasping his hands behind his back in the manner of an enormous choir boy. Nuke Laloosh with five-day stubble.

When Trivino’s not talking to you, he is pitching for the Oakland A’s. The A’s bullpen, as Jeff Sullivan and then I and then Jeff Sullivan again have noted at various points throughout the year, has been very good all season, and a big part of that success has been Trivino’s performance as a rookie. In (brief) summary: Trivino threw 74 innings for Oakland this year, during which he struck out 82 batters and walked 31. His ERA was 2.92, which is 30% better than the league average. He recorded an 89 FIP-. He was quite good.

Still, his numbers would have been better had I recited them for your benefit a few weeks ago. On September 18th, against the Angels, Trivino recorded two outs and gave up three runs. In his next appearance, on the 21st against Minnesota, he gave up four runs and failed to record an out. When I caught up with him recently in Seattle, I asked him if he was tired.

“No, that’s not it,” he said, quickly, with a look at me that suggested that he thought I might have manager Bob Melvin hiding under my jacket. “I know a lot of people think that I’ve been overworked, but that’s not it at all. My arm feels good, my body feels good. It’s just hitters adjusting to me now and I’ve got to adjust back. That’s exactly it. I feel like I know exactly what I need to do, it’s just been a lack of execution. I just need to get back to executing pitches and I’ll be alright.”

There’s some merit to that argument: Trivino was successful enough in his first few months of the season that he’s now getting chances against batters who’ve faced him before. But there’s also the objective truth that he has pitched more innings this in 2018 than he did in either of his past two campaigns, both of which were in the minors.

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This year’s AL Wild Card Game will be a battle of competing philosophies, at least when it comes to the choice of starting pitchers. On Tuesday at Yankee Stadium, the opposing managers announced their picks for Wednesday night’s game. The Yankees have decided to remain old-school, with manager Aaron Boone tabbing 24-year-old righty Luis Severino, an All-Star who despite second-half struggles finished fourth in the league in WAR (5.7) and in a virtual tie for fifth in FIP (2.95) — and one whose early exit in last year’s Wild Card Game pushed the Yankees into a bullpen-oriented approach anyway. As for the A’s, a club whose rotation has has lost staff ace Sean Manaea and five other starters to season-ending surgeries, manager Bob Melvin is going the new-school route, with 29-year-old righty Liam Hendriks as his opener — a first of sorts. In eight September starts, Hendriks threw a combined 8.2 innings.

Together, the choices offer something of a callback to a year ago. Heading into the AL Wild Card game, then-manager Joe Girardi was ambivalent about the possibility of saving Severino for a potential Division Series Game One and relying upon his wealth of dominant relievers to face the Twins. “You could do that but that’s not something you’ve done during the course of the season,” Girardi told reporters. “And we have some starters who are pretty qualified to make that start… If you start doing crazy things, things guys aren’t used to, then I’m just not comfortable doing it. You want to keep it as normal as possible.”

Despite Girardi’s reservations, it was clear that the Yankees were built for such a scenario thanks to general manager Brian Cashman’s July 19 (re)acquisition of David Robertson and Tommy Kahnle to add to a bullpen that already included Aroldis Chapman and Dellin Betances. “A veritable clown car of effective righties who can miss bats and take over before Twins batters get too familiar with Severino,” is how one wag put it.

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There are a lot of reasons why the Oakland A’s are bound for the playoffs this year. Matt Chapman has produced an MVP-level season, and the club’s bullpen is amazing. Khris Davis, Jed Lowrie, Matt Olson, and Marcus Semien are all having good years, as well.

Unsurprisingly, playoff teams tend to be composed of good players. All of the individuals mentioned so far, however, were also members of a club that won just 75 games a year ago. Their strong play this season has undoubtedly helped the 2018 version of the A’s, but the club has also gotten an important contribution from newcomer Stephen Piscotty.

The right fielder joined Oakland in a winter trade from the St. Louis following a difficult year and a half for him both on the field and off. Despite playing well following his call-up in the middle of 2015 until the All-Star break in 2016, Piscotty’s performance suffered after that. Off the field, Piscotty contended with an infinitely worse blow when his mother, Gretchen, was diagnosed with ALS in May 2017.

Piscotty took some time off that season to be with his family. On the field, he dealt with multiple DL stints and a trip to the minors. It’s hard, if not impossible, to understand what Piscotty was going through. One gets a sense of it, though, from Susan Slusser’s profile of the outfielder published this past May:

“It’s relatively hard to watch, to see the progression take place… I feel so bad. I want to put a positive spin on it, but there are things that are out of our control and we’re just trying to make the best of a bad situation, and hopefully with what we’re doing, we can one day get to a point where other folks don’t have to go through it.”

The trade to the A’s wasn’t a panacea. Piscotty continued to slump at the beginning of the season. His mother died in early May and Piscotty hit an emotional home run in his first game back.

A few weeks later, though, Oakland was still hovering around .500. At that point, Piscotty had reached base just six times in his 35 plate appearances after the homer. There was little indication that, over the next four months, Piscotty would be one of the best hitters in all of baseball. As the table below demonstrates, though, that’s precisely what happened.

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It’s almost laughable how quickly the A’s have pulled away in the AL wild-card race, but back on the morning of August 3, everyone woke up to what was then just a half-game advantage over the Mariners. At that point, the chances of the A’s making the playoffs came down to more or less a coin flip. When the standings are tight, problem spots are magnified, and the A’s decided to make a change in center field. On the evening of that particular Friday, Ramon Laureano made his major-league debut. In the bottom of the 13th, he walked it off with a game-winning single.

What’s happened since then has a lot to do with a lot of players. Several different A’s have performed very well. Several different Mariners have not. These days, the A’s aren’t worried about making the playoffs; they’re trying to get a home game, or even a direct trip to the ALDS. But every contender wants to be as good as it can be, and on the year, in center field, the A’s have combined to be worth 1.5 WAR. Laureano by himself has been worth 1.7, over just a handful of weeks.

Last November, Laureano was traded to the A’s from the Astros, who elected not to protect him on their 40-man roster. Laureano has since become crucial to Oakland’s present and future.

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Reliever performance is volatile, fluky even from year to year. One season, a closer is dominant; the next, he’s just average. Over the past 40 years, there have been 59 relief seasons of at least 3.0 WAR. Only Rob Dibble, Eric Gagne, Rich Gossage, Tom Henke, Kenley Jansen, and Craig Kimbrel have produced seasons of that standard consecutively. By comparison, 10 starting pitchers have exceeded 7.0 WAR in consecutive seasons (67 seasons total), and 10 position players have exceeded 8.0 WAR in consecutive seasons (83 seasons total). Those 59 relief seasons were compiled by 41 different relievers, and three of those seasons are happening right now.

Josh Hader’s second half hasn’t been as good as his first after a forgettable All-Star Game, but with a 1.83 FIP and a 2.08 ERA, Hader is right at 3.0 WAR. In a lot of seasons, a solid finish to the year would make Hader the highest-rated reliever by WAR. This year, however, Hader is solidly in third place behind Edwin Diaz and Blake Treinen.

A year ago, Diaz posted a 4.02 FIP and a 3.27 ERA. That’s not bad, but it’s also not great. Diaz struck out 32% of batters faced, which is quite strong, but he also walked 12% of batters and gave up 10 homers. This season, Diaz is using his slider a bit more to get swings outside of the zone. The results have been staggering: he’s increased his strikeouts by about 50% while decreasing his walks and homers by 50% as well. With a few weeks to go, Diaz has piled up 3.7 WAR thanks to a 1.38 FIP — or 34 FIP- when factoring in league and park, which allows us to compare across eras. Only four relievers have ever put up a FIP- that low: Wade Davis, Gagne, Jansen, and Kimbrel (twice). The increased specialization of the closer role means that those four players all come from the past 20 years. Although Diaz’s 1.95 ERA and 48 ERA- are very good, they are not the best marks in the game. That honor goes to Treinen.

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Does anybody have a phone number for Vida Blue or Dave Stewart? Maybe Tim Hudson? The A’s could use another starter for their playoff push, because on Tuesday, they got the definitive news on Sean Manaea, and it was quite bad. The 26-year-old lefty hasn’t pitched since August 24 due to what was initially diagnosed as shoulder impingement and then revised to tendinitis in his rotator cuff. Not only will he not return this season, as initially hoped, but he’ll undergo arthroscopic shoulder surgery next week, and is expected to be sidelined through 2019.

The timeline isn’t unlike that of a late-season Tommy John surgery candidate such as the White Sox’ Michael Kopech, but returns from shoulder surgery are far less predictable than those from ulnar collateral ligament repair. In Manaea’s case, the exact diagnosis is unclear, at least as far as the general public goes; the range of possibilities could include a bone spur in his shoulder, and/or a tear in his rotator cuff, labrum, or anterior capsule — or some combination of those injuries. Manager Bob Melvin told reporters, “The specifics we’ll talk about more after the surgery, so we’ll know exactly what was repaired.”

Ouch. Say, what’s Barry Zito doing these days?

Manaea is the 10th Oakland starter to land on the disabled list (a total of 13 stints, according to the San Francisco Chronicle’s Susan Slusser) and the fifth to suffer a season-ending injury. The other four were Tommy John recipients: Jharel Cotton and A.J. Puk were cooked before the season even started, while Opening Day starter Kendall Graveman and April 1 (game four) starter Daniel Gossett combined for just 12 starts before going down. Indeed, the first cycle through the A’s rotation looks like the dwindling cast of a horror movie, with Manaea (who started the season’s second game) and Andrew Triggs (who started the fifth, and is now on a rehab assignment, recovering from a nerve irritation issue) currently sidelined. Daniel Mengden, who started the season’s third game, is the only one currently active; in late June and early July, he served a DL stint for a sprained right foot. Also out are lefty (and perennial DL denizen) Brett Anderson, who is nearing a return from ulnar nerve irritation, and righty Paul Blackburn, who’s without a timetable as he works his way back from lateral epicondylitis (tennis elbow).

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Over the weekend, the A’s swept the Rangers. On its own, that’s hardly remarkable. The A’s are a good team, and they’re playing for something. The Rangers are a worse team, and they’re playing to stop playing. Given the extra distance the A’s put between themselves and the Mariners, this might’ve been the weekend the AL playoff picture was basically decided. Where it gets interesting is when you see how the A’s won the three games. Besides scoring 23 runs, I mean.

On Friday, the A’s resorted to using an opener, in the person of Liam Hendriks. He threw a scoreless inning. On Saturday, Edwin Jackson started, and he allowed four runs in three innings. On Sunday, Trevor Cahill started, and he allowed three runs in 2.2 innings. The A’s starters combined for 6.2 frames, with a 9.45 ERA. Many have been skeptical of the A’s for a while, and they’ve pointed to the starters as the reason. The starters, you see, are not great.

But all the innings not thrown by starters were thrown by relievers. Over the weekend, no team’s bullpen threw more innings than Oakland’s 20.1. It allowed a wOBA of .250, with a 2.66 ERA. The A’s swept the series, even though the starters weren’t helpful at all. Part of the reason is because they hit. And part of the reason is because of the relief. Relieving has really been the main story here. Even I can’t believe the statistics.

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The small-market Oakland A’s are outperforming expectations — they have a habit of doing this — and, as always, their front office deserves plaudits. Billy Beane famously fronts the group, with David Forst acting as his right-hand man in the general manager’s chair. And then there’s Dan Kantrovitz, whose primary duties are encapsulated with this line in the team’s media guide:

[Kantrovitz] is involved in all aspects of the A’s baseball operations department with a primary focus on overseeing statistical analysis for evaluating and targeting players in the amateur draft, free agent and trade markets.

Currently in his fourth season as Oakland’s assistant GM, Kantrovitz has both the background and the expertise to thrive in his role. The possessor of a master’s degree in statistics from Harvard, he’s served in multiple capacities within professional baseball, including a three-year stint as the director of scouting for the St. Louis Cardinals. This is Kantrovitz’s second go-round with his current club, as he previously worked in the Oakland front office from 2009 to -11.

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Kantrovitz on the A’s outperforming expectations this season: “With three weeks left, a lot can happen. I wish I had a good answer to explain the team’s performance so far, but I think you’ve got to start with the guys on the field. So many of our players are having great years — and, in some cases, career years. Then you can factor in that David [Forst] and Billy [Beane] and the coaching staff have made some good decisions along the way. Maybe we have had some good fortune on top of it?  Also — and this is maybe hard to quantify — I think the effect of a guy like Jonathan Lucroy on our pitching has been significant.”

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Notes on prospects from lead prospect analyst Eric Longenhagen. Read previous installments here.

Note from Eric: Hey you, this is the last one of these for the year, as the minor-league regular season comes to a close. Thanks for reading. I’ll be taking some time off next week, charging the batteries for the offseason duties that lie ahead for Kiley and me.

D.J. Peters, CF, Los Angeles Dodgers
Level: Double-A   Age: 22   Org Rank: 7   FV: 45+
Line: 4-for-7, 2 HR, 2B (double header)

Notes
A comparison of DJ Peters‘ 2017 season in the Cal League and his 2018 season at Double-A gives us a good idea of what happens to on-paper production when a hitter is facing better pitching and defenses in a more stable offensive environment.

Reports of Peters’ physical abilities haven’t changed, nor is his batted-ball profile different in such a way that one would expect a downtick in production. The 2018 line is, I think, a more accurate distillation of Peters’ abilities. He belongs in a talent bucket with swing-and-miss outfielders like Franchy Cordero, Randal Grichuk, Michael A. Taylor, Bradley Zimmer, etc. These are slugging center fielders whose contact skills aren’t particularly great. Players like this are historically volatile from one season to the next but dominant if/when things click. They’re often ~1.5 WAR players who have some years in the three-win range. Sometimes they also turn into George Springer.

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Notes on prospects from lead prospect analyst Eric Longenhagen. Read previous installments here.

Cal Stevenson, OF, Toronto Blue Jays
Level: Advanced Rookie   Age: 21   Org Rank: NR   FV: 35
Line: 3-for-4, 2B, 4 SB

Notes
College seniors are expected to dominate short-season leagues after signing but what Cal Stevenson has done merits some discussion, in part because he played through a hand injury this spring that may have clouded his actual skill. Stevenson has a .513 OBP at Bluefield because he has walked nearly three times more often than he’s struck out. He’s also stolen 21 bags in 22 attempts since signing. These numbers corroborate scouting reports which compliment Stevenson’s plus speed and bat-to-ball skills before noting his likely corner-outfield defensive projection and lack of characteristic power for the position. But let’s keep an eye on this guy because Toronto has a track record of making swing adjustments to bat-first college players that have helped those players become more viable prospects.

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