Every baseball season is crazy, and the crazy can never be completely summed up in one sentence. There’s just too much of it, in too many places, and no one wants to read that long of a sentence. But here’s a sentence that captures some of the 2013 crazy to date: on August 27, the Pittsburgh Pirates have traded for Marlon Byrd. Suggested, by that sentence, is that the Pirates are in the playoff hunt, hence their desire to make an upgrade. Suggested, also, by that sentence, is that Marlon Byrd is an upgrade, in this season. It’s been weird. It’s always weird, but it’s been weird.

If you’d like all of the details, Anthony DiComo has many of them. The Pirates are adding Byrd, John Buck, and some cash from the Mets. The Mets are adding Dilson Herrera and a player to be named player from the Pirates. The Pirates recently put Starling Marte on the disabled list, and they recently lost their backup catcher for the season. They’re still in great shape to at least play in the one-game wild-card playoff, and by making this swap in August instead of September, Byrd and Buck will be postseason-roster eligible. It’s easy to understand the Pirates’ motivation, and it’s easy to understand the Mets’ desire to get something young for a month of two veterans.

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Yesterday, it was reported Matt Harvey may need Tommy John surgery because of a torn UCL in his right elbow. Some people may say they saw the injury coming and the Mets were crazy to let him throw over 175 innings this season, but the evidence doesn’t really support those ideas. After looking over the history of other 24-year-olds, it appears that the pitcher’s ability to throw hard and recent small velocity drop were the only identifiable injury indicators.

Myself and others have looked at many indications of a pitchers chances of getting hurt. High increase in innings for a young pitcher (Verducci Effect). Velocity and Zone% drop (PAIN Index). Inconsistency in release points and velocity late in a game. High breaking ball usage. Bad Mechanics. High fastball velocity.

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Carlos Delgado’s official retirement in 2011 sort of slipped under the radar. It was understandable, since it came in April right after the beginning of the season. It was a bit unfortunate, though, because Delgado had an wonderful career. Yesterday at the Rogers Centre, the former Met and Marlin slugger was recognized by the team he was most closely associated with, the Blue Jays, during a ceremony in which he was inducted into the Jays’ “Level of Excellence.”

[It’s a tremendous name, isn’t it? I can imagine the brainstorming that went into it. Team President: “You need to come up with a name for our version of a Ring of Honor that is a bit different. Something like, ‘Level of Excellence,’ but, you know, better.” {President leaves rooms.} Marketing Person to others: “‘Level of Excellence’ okay with everyone?” {Others shrug in assent.}]

Delgado was outstanding, but he was no Hall of Famer. He move from catcher to first base early on, and even that position was a stretch, no matter how hard he tried. He was bad on the bases. But the guy could hit. From 1997 to 2004, he was one of the best hitters in the American League. His 148 wRC+ over that span was the equal of Alex Rodriguez and better than Edgar Martinez and Frank Thomas.

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The last time I wrote about Edge% it was in the context of the Tampa Bay Rays using it to get their pitchers into more favorable counts on 1-1. But now I want to take that topic and drill a little deeper to understand how often edge pitches are taken for called strikes.

Overall, pitches taken on the edge are called strikes 69% of the time. But that aggregate measure hides some pretty substantial differences. Going further on that idea, I wanted to see how the count impacts the likelihood of a pitch on the edge being called a strike.

Here are the results:

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Bobby Parnell hasn’t been pitching long. As he puts it, he “played a position” when he was little, and hit the mound for the first time in college. Because he threw hard, he kept climbing that mound for three years, was drafted, shuttled through the Mets minor league system, and plunked into his role as a late-game reliever in New York.

Some things — like that gas — stayed the same throughout, but there are a few aspects to his game that have weaved in and out of his game as his career has progressed. Now that he’s getting comfortable at the big league level, it’s all coming together.

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Glen Perkins has, somewhat quietly, become a dominating relief pitcher. He currently sits 5th among qualified relievers in FIP (1.84), 4th in xFIP (2.21), and he has 14 shutdowns against just two meltdowns. He’s into advanced statistics and knows what FIP and xFIP are. He’s going to represent the Twins in the All-Star Game next week, the team he grew up watching as a kid in Minnesota. And he’s signed to a well below market contract, one that pays him just $2.5 million this year, $3.75 million for the following two years, and then gives the Twins a $4.5 million option on his 2016 season. Because of all these things — okay, probably not the nerd part — the Twins are reportedly not willing to trade Perkins, as their preference is to keep him while they rebuild a new core of young players around him.

The Mets might do a similar thing with Bobby Parnell. He has also been excellent (2.16 FIP, 3.16 xFIP) since moving into their closer role, and as a 28-year-old under team control via arbitration for the next two seasons, the Mets are apparently disinclined to trade him. Neither team wants to send the message that their rebuilds are going to take years, and both are showing a preference to retain their young, cost controlled assets and simply move older pieces on larger contracts instead.

Here’s the problem. Closers — relief pitchers in general, really — are simply not worth building around. Today’s asset is tomorrow’s liability, and the Twins and Mets should learn from the mistake that the Royals made with Joakim Soria.

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Apparently, Zack Wheeler is tipping his pitches, and it’s so obvious that the Mets manager Terry Collins got ten text messages on the subject during the game in Chicago on Tuesday. Is it obvious enough that we can tell?

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In his Major League debut for the Mets, 23-year-old Zack Wheeler struck out seven hitters in his six innings of work. Of those seven strikeouts, six came on fastballs — and of those six, four came on whiffs induced by fastballs.

This got me wondering, what pitchers this year have generated the largest percentage of their strikeouts off of their fastball? And how many generated those strike outs on swings and misses on fastballs*?

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Matt Harvey didn’t throw a no-hitter against the Braves on Tuesday, but he did almost do that, not allowing a hit until the bottom of the seventh. It’s not that Harvey relied entirely on the strikeout — of the batters he faced, 13 didn’t whiff. But then, of the batters he faced, 13 did whiff, and Harvey’s season rate is verging on 30%. Matt Harvey was already good a year ago. Since then he’s only induced more grounders and cut his walk rate in half. Harvey, at this point, is in the argument for being the most valuable young pitcher in all of baseball.

Against the Braves, Harvey registered 15 swinging strikes on secondary stuff, which is outstanding. Yet he also picked up eight whiffs on his heater, which is kind of par for the Harvey course. No other starter’s fastball has led to so many swinging strikes, as Harvey can just be completely overwhelming. Instead of just using his fastball as a foundation, Harvey uses it also as a weapon, which is a rare gift. To have a swing-and-miss fastball is to have one hell of an advantage, and though fastballs tend to get slower over time, for now, at least, Harvey’s elite.

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You all know the R.A. Dickey story by now. Journeyman major leaguer reinvents himself as a knuckleball thrower in his 30s, then refines the pitch to become one of the better starting pitchers in baseball, culminating with his selection as the National League Cy Young Award winner last year. The knuckleball is always a fascinating pitch, and Dickey is a fascinating guy, so there has been no shortage of media attention focused his direction.

While I was not working here at FanGraphs last year, I could not resist taking a belated look at some of Dickey’s dominating knuckleballs from that 2012 season. I’ve selected three particularly impressive pitches from that campaign and used an effect known as StroMotion to help track their movement.

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