We’ve written about a possible sea change in baseball over the last few years here, using phrases like “point of contact” and “attack angle” to better articulate the emergence of a Fly-Ball Revolution, itself another relatively new expression. Add those phrases to all the ones we’ve been compelled to learn for the benefit of Statcast alone — terms like “launch angle,” “exit velocity,” “spin rate,” etc. — and it’s obvious that our baseball dictionaries are getting an update on the fly.

Simply because we’re using a new lexicon, however, doesn’t mean we’re using it correctly — or, at the very least, that some of our assumptions couldn’t benefit from an update, as well.

With that in mind, I decided to examine some of the most notable and commonly used terms in this new language of hitting. With the help of the players themselves, perhaps we can better see what lies beneath each of them and attempt to reach something closer to a common understanding.

Fly-Ball Revolution

“I wish you wouldn’t call it the ‘fly-ball revolution,'” Daniel Murphy told me earlier in the year. “Coaches then think we’re talking about hitting the ball straight into the air. Call it the ‘high-line-drive revolution.'”

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With still roughly two weeks left in the regular season, the divisional races across the major leagues have sputtered and nearly died. Three divisions have already been clinched. The Los Angeles Dodgers have already guaranteed themselves a playoff berth and should secure the National League West in short order. Beyond the Wild Card races, then, the NL Central and AL East remain the only hope for meaningful baseball over the season’s closing weeks. The Cubs have a four-game lead in the former and 96.6% odds of taking the division. The Red Sox, meanwhile, possess a three-game lead in the latter and 89.6% odds.

The Cubs have four games this week with the Brewers in Milwaukee. That series has a chance to facilitate some of the season’s most consequential games, provided Milwaukee can remain within striking distance of Chicago in the meantime. As for the Red Sox, though, don’t play the second-place Yankees again, which will make it tougher for the latter club to make up ground.

The bright side of having these races more or less decided is that we can start to look at the potential rosters for the League Division Series a little sooner. I’ll begin today with the American League. For the purposes of this exercise, I’ll proceed by the odds and regard the Red Sox as the presumptive winners of the East. If that turns out not to be the case, feel free to come back here in October and squawk at me.

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In something of a surprise move, the Washington Nationals have called up 20-year-old center fielder Victor Robles from Double-A. Robles spent most of the season at the High-A level, having only played at Double-A since late July. Robles lacks experience against big-league-caliber pitching, but met basically every challenge at the lower levels this year, hitting an outstanding .300/.382/.493 with 27 steals. You’d be hard-pressed to find many batting lines better and more well rounded than Robles’. He hits for average, hits for power, and is a weapon on the bases. Oh, and he’s also an elite center fielder who was worth 15 runs above average this year according to Clay Davenport’s numbers.

If you’re looking for any signs of weakness with Robles, his plate discipline is a candidate. He struck out in 17% of his plate appearances in the minors and walked in 7%, which are both league-average-ish marks. Granted, there’s nothing wrong with average strikeout and walk numbers, particularly when everything else is off the charts. But keep in mind that those figures were recorded mostly against A-ball pitching and are likely to worsen against big leaguers.

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This post is about Gio Gonzalez. It says so right in the title. But to get there, we first have to talk to Dennis Eckersley, because he said something the other day that’s pertinent to what the lefty in Washington is doing right now.

Eckersley, in Oakland because the team named a gate after him, was relaxing before a game. We were talking about changes in the sport, and I asked him why his strikeout rate peaked in 1992, at a point when he was 38 years old and had been a reliever for five years. Was it a new pitch? Grip? Approach?

Nope.

“Everyone started chasing, just like now,” the legendary reliever said that day. “You punch out 200 guys now, it’s not a big deal. Everyone is striking out a guy an inning. You tell me why. First of all, they’re throwing harder. I get that. But no one puts down their hack. These 2-2 swings… they’re, like, crazy.”

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

Victor Robles, CF, Washington (Profile)
Level: Double-A   Age: 20   Org Rank: 1  Top 100: 8
Line: 3-for-5, 2B, HR, SB

Notes
Robles is slashing .320/.375/.505 since his promotion to Double-A and has tallied a career-high 51 extra-base hits already this year. Many of those are doubles hooked down the left-field line that Robles turns into extra bases because of his plus-plus speed. Though he still has occasional lapses out there right now, that speed is likely to make Robles a very good defensive center fielder at maturity as he runs down balls in the gaps that many center fielders cannot. Scouts anticipate Robles will hit around .300 with some pop — though probably not quite as much as he’s shown this year — while playing good defense in center field. As a point of reference, Lorenzo Cain, a good defensive center fielder, has slashed .295/.360/.440 this season with strikeout and walk rates within 1% of Robles’ career marks. Cain has generated 3.3 WAR in 119 games this year. That appears to be a very reasonable outcome for Robles, who is one of baseball’s best prospects.

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Washington left-hander Gio Gonzalez pitched into the seventh inning on Sunday in San Diego. His 120th pitch of the late afternoon was ripped into right field by Manuel Margot for a single. It was his last pitch of the outing, as Nationals manager Dusty Baker strode to the mound, gestured to the bullpen, and took the ball from Gonzalez.

Twenty years ago, this wouldn’t have been a noteworthy event. The sequence would seem rather innocuous, in fact. But we live in an age marked by an unprecedented number of pitching injuries, an age in which teams and players are more often turning to science to better understand performance and injury prevention. We live in an era when pitch counts routinely accompany the game data in the corner of a telecast. No team of which I’m aware has figured out how to significantly reduce pitching injuries, but there is a general sense that it’s better to be safe than sorry.

And this is where Baker stands out from the crowd.

While pitch counts are crude metrics, only 10 teams have allowed a starting pitcher to exceed 120 pitches this season; only two teams have allowed it to occur on multiple occasions.

Baker and the Nationals have accomplished it four times.

Baker is lapping the field.

The Nationals under Baker also rank second in average pitch count per start (100.5 pitches), one of only two teams averaging more than 100 pitches per start. They also rank second in number of 100-plus pitch outings (76). The Nationals are trailing only the Red Sox (101.1, 81) in each category, according to the Baseball Prospectus data.

It’s not curious just that Baker is leaning on his starters to an unusual degree relative to the league in 2017, but that he’s doing so at a time when the Nationals have a 14-game lead in the NL East and a 100% chance of reaching the NLDS according to FanGraphs playoff projections entering Monday. This would seem like the time to give players more rest when possible.

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There’s a difference between watching the game at home and watching at the park, that much is obvious. Personally, I’m more analytical at home, where I have the tools to identify pitch type and location with some precision, for example. At the field, I can only tell velocity and maybe spot the curveballs, so I get an adult soda, a good companion, and I talk and wait.

What am I waiting for? “People go to the game to see us put the ball in play, throw the ball away, and fall down,” Giants starter Jeff Samardzija told me the other day. “They want to see people doing things,” said Indians slugger Jay Bruce. I couldn’t disagree. The problem, if this is true, is that baseball is trending in the opposite direction. There are fewer balls in play now than at any other point in the history of the sport. There’s less of people doing things, to use Bruce’s words.

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Below are the updated summer top-10 prospect lists for the orgs in the National League East. I have notes beneath the top 10s explaining why some of these prospects have moved up or down. For detailed scouting information on individual players, check out the player’s profile page which may include tool grades and/or links to Daily Prospect Notes posts in which they’ve appeared this season. For detailed info on players drafted or signed this year, check out our sortable boards.

Atlanta Braves (Preseason List)

1. Ronald Acuna, CF
2. Ozzie Albies. 2B
3. Kyle Wright, RHP
4. Luiz Gohara, LHP
5. Kolby Allard, LHP
6. Kevin Maitan, SS
7. Ian Anderson, RHP
8. Mike Soroka, RHP
9. Joey Wentz, LHP
10. Cristian Pache, CF

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Evaluating relievers is difficult given their small sample of work in any given year and their volatility from year to year. But, given the fact that the most active sector of the trade deadline ended up being relievers, it makes sense to put them all in one place and wonder who got the best one. Might there be a surprising answer since the Padres ended up holding Brad Hand’s production on their roster?

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Three minor-ish trades went down on Friday night. The Mets acquired A.J. Ramos from the Marlins for Merandy Gonzalez and Ricardo Cespedes; the Nationals acquired Howie Kendrick from the Phillies for McKenzie Mills; the Orioles acquired Jeremy Hellickson from the Phillies for Garrett Cleavinger and Hyun Soo Kim.  Below are the projections for the prospects who changed hands. WAR figures account for the player’s first six major-league seasons. KATOH denotes the stats-only version of the projection system, while KATOH+ denotes the methodology that includes a player’s prospect rankings.

None of the players dealt last night are top prospects, and as a result, their likelihood of outcomes graphs are heavily skewed towards “no MLB”. Kyle Glaser recently found that fewer than one in five prospects traded at the deadline contribute more than one positive WAR season. All three of these pitchers seem like good bets to fall into that bottom four-fifths.

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