A few months ago, someone asked me who the most underrated player in baseball was, and after kicking around a few names, I settled on Arizona outfielder A.J. Pollock. Pollock got to the big leagues as a speed-and-defense center fielder who hit well enough to justify a regular gig, and then had his breakout year derailed last season when Johnny Cueto hit him in the hand with a fastball. Since he missed roughly half the season, it was easy to overlook his offensive improvements, but Pollock carried the added power and improved contact rate over to this season, and has developed into one of the very best outfielders in all of baseball.

But Pollock’s 2015 season has been so good that it’s hard to call him the game’s most underrated player anymore. After all, he made the All-Star team this year, and thanks to a .325 average and a decent likelihood of being honored with a Gold Glove at years end, he’s not really flying under the radar anymore. Like Ben Zobrist and Bobby Abreu, Pollock might have been mentioned as the game’s most underrated player so many times that he’s now being properly rated.

But even with Pollock’s graduation to stardom now being pretty widely accepted, I still think the game’s most underrated player might be an outfielder for the Diamondbacks. This time, I’m going with Pollock’s teammate David Peralta.

Read the rest on Just a Bit Outside.

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With the Cubs in San Francisco to face the team just behind them in the wild-card race, it makes sense to compare the two managers. After all, they both ended up within the top five in a recent ESPN.com survey, and their teams have both found success in recent years. Though they were born just a year apart, their styles are different enough that they seem to be a study in contrasts.

Who better to ask about what makes them great than their own players and coaches and beat writers? Well, maybe unbiased observers can be more critical than our sample, but the task at hand is to delineate the managers’ strengths.

So, what makes Bruce Bochy great? What makes Joe Maddon great?

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Devised originally in response to a challenge issued by viscount of the internet Rob Neyer, and expanded at the request of nobody, NERD scores represent an attempt to summarize in one number (and on a scale of 0-10) the likely aesthetic appeal or watchability, for the learned fan, of a player or team or game. Read more about the components of and formulae for NERD scores here.

Most Highly Rated Game
Houston at New York AL | 13:05 ET
McHugh (159.0 IP, 100 xFIP-) vs. Pineda (118.0 IP, 71 xFIP-)
On the edition of FanGraphs Audio released this actual morning, the author mentioned that a friend of his — the sort of friend, specifically, who’s had two children over the last four years and whose relationship with the Pastime has suffered duly — would be attending today’s Astros-Yankees game. What follows is a brief collection of statements designed to provide context for a spectator of that same contest who also has no idea what’s going on.

• Both the Astros and Yankees currently possess better than a 50% chance of reaching the divisional series.
• New York’s success has been facilitated in no small part by the unexpectedly robust contributions of Alex Rodriguez and Mark Teixeira.
• Houston’s success, meanwhile, has been facilitated largely by players who are 25 and under.
• Yes, seriously, the Astros.
• By multiple standards, Houston and New York both possess among the top bullpens in the league, if that’s interesting at all.
• Probably avoid staring directly into Carlos Correa’s extraordinary talent.
• You might never return.

Readers’ Preferred Broadcast: Houston Television.

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A little over a month ago, Dave ran through his annual trade value rankings, and as he likes to do, after all the good bits, he wrote up the bad bit, addressing the game’s least-valuable players. Ranking third on his list was fallen Tigers ace Justin Verlander, whose contract is steady even when the pitching isn’t. Verlander ranked worse than Matt Kemp. Worse than Shin-Soo Choo. He’s making $28 million a year through 2019, and when Dave wrote the post up, Verlander looked like a wreck, after a season in which he also looked like a wreck. Verlander’s contract has been used as one of the reasons why the Tigers might be headed for disaster.

And, the Tigers might be headed for disaster. So might you and I be, I don’t know. Who knows anything? One thing I think I know, though — Verlander has turned things around. As the Tigers have faded out of the race, Verlander has seemingly re-emerged, and now it’s worth wondering what he actually is. Just as the world was getting used to the idea of an underwhelming, under-performing Justin Verlander, he’s showing signs that he…might…be…back? What if that were true? Are we open to the chance that that’s true?

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Episode 589
Dave Cameron is both (a) the managing editor of FanGraphs and (b) the guest on this particular edition of FanGraphs Audio, during which edition he discusses this past weekend’s Saberseminar in Boston, the quality and quantity of Statcast data, and one of Curt Schilling’s less horrifying — but also recent — comments.

This edition of the program is sponsored by Draft, the first truly mobile fantasy sports app. Compete directly against idiot host Carson Cistulli by clicking here.

Don’t hesitate to direct pod-related correspondence to @cistulli on Twitter.

You can subscribe to the podcast via iTunes or other feeder things.

Audio after the jump. (Approximately 39 min play time.)

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A week and a half ago, there was a remarkable home run, which I like. I’m drawn to those kinds of things, and I almost can’t help myself but write about them. I was floored by the home run itself; it was one of the most obvious subjects ever provided to me. The only problem was then I didn’t write for a week. The moment passed. Usually, these things have to be written right away, or people cease to be interested. It’s been a while since the home run, now. People are thinking about other things. The Mets. The Mets are neat.

I feel like I have to do it, though. I can’t let it fade away — FanGraphs needs to have a post dedicated to this home run. It was sufficiently incredible that we’d be doing you a disservice by not putting something together. While I know the moment is gone, this is a home run with a longer life, a home run for which you needn’t worry about context. Come with me back to Saturday, August 15. We’re going to watch the Indians and the Twins in Minnesota. We’re going to watch them because, in the fifth inning, there was Eddie Rosario.

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Around here, you know that we spend a lot of time working with metrics that attempt to strip noise out of results. Often times, we’re less concerned with what has happened and more concerned with what is going to happen, and these component metrics often do a better job of isolating either a player or a team’s overall contribution to the results, while removing some of the factors that lead to those results but aren’t likely to continue in the future.

At the team level, the most comprehensive component metric we host is called BaseRuns, which evaluates a team’s quality based on all the plays they were involved in, without regard for the sequence in which those events occurred. BaseRuns essentially gives us a context-neutral evaluation of a team’s performance, assuming that the distribution of hits and runs isn’t really something a team has a lot of control over. BaseRuns can be thought of as the spiritual successor to Bill James‘ implementation of the pythagorean theorem to baseball, as pythag strips sequencing out of the conversion of runs to wins, but doesn’t do anything to strip the sequencing effects out of turning specific plays into runs scored and runs allowed.

Historically, BaseRuns has worked really well. For the years we have historical BaseRuns data (2002 to 2014), one standard deviation was right around four wins, and the data appears to be normally distributed; 73% of team-seasons have fallen within one standard deviation, 97% of team-seasons have fallen within two standard deviations, and no team had ever exceeded three standard deviations. There have been years here and there where a team sequenced their way to an extra 11 or 12 wins, but they weren’t very common, and that was usually the only break from the norm in that season.

Until this year. Here is the year by year standard deviation in BaseRuns wins versus actual wins for every year that we have the data.

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It’s no secret that the Washington Nationals have fallen short of expectations this season. At 62-61, the unanimous NL East favorites from the preseason sit 5.5 games behind the Mets with a discouraging 19% chance of winning the NL East. Things have been particularly ugly of late, as the Nats have won just 11 of their last 30 games.

As Dave Cameron pointed out last week, several of the biggest culprits for the team’s struggles are members of the team’s offensive core. Anthony Rendon and Ryan Zimmerman have been bad. Jayson Werth’s been worse than that. But perhaps the biggest disappointment has been the team’s shortstop, Ian Desmond, who was projected for the second-highest WAR among Nationals hitters by ZiPS. Desmond’s .229/.279/.384 batting line has put him within spitting distance of replacement level — a far cry from his preseason ZiPS forecast of 4.0 WAR.

Despite his struggles, the Nationals stuck with Desmond over the season’s first four-and-a-half months, trotting him out there in 119 of their 123 games this season. But on Friday, the team began to diverge from the status quo. After weeks of speculation, the Nats finally summoned prospect Trea Turner to the big leagues to help solidify the shortstop position from here on out.

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