Understand that this is the trade deadline, so things are kind of busy. When things are kind of busy, you don’t have time to think about each individual thing in sufficient depth. The analyses you read today should be fine, but maybe they’ll miss some points. Maybe, right here, I’m missing some points. But the Diamondbacks traded Ian Kennedy to the Padres, and as far as Arizona is concerned, I can’t help but feel underwhelmed.

The whole deal is such: Kennedy is going to San Diego. In return, Arizona gets Joe Thatcher, Matt Stites, and a compensation round B draft pick. Kennedy’s 28, and he’s got two more years of team control. Thatcher’s 31, and he’s got one. Stites is 23 and relieving in Double-A. The draft pick is a high-but-not-too-high draft pick that’ll add to Arizona’s bonus pool. As intended, the Diamondbacks have improved their current bullpen. They’ve also cleared a little salary. And the Padres bought low on a potential quality starter.

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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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Gerardo Parra is probably one of the most underrated players in baseball. He’s been on the Diamondbacks roster since 2009, but they never saw fit to give him a regular job, keeping him as a part-time reserve and injury fill-in, despite the fact that his production suggested he was good enough for a starting role. Finally, this year, a series of injuries to Adam Eaton, Cody Ross, and Jason Kubel have forced Kirk Gibson to put Parra in the line-up everyday, and he’s responded with his best performance to date. Through 335 plate appearances, he has a 133 wRC+ and UZR continues to rate him as an elite defensive outfielder, so he’s already at +3.1 WAR with half a season left to play.

However, in the midst of Parra’s excellent overall performance, there’s one glaring problem; he’s threatening to post one of the worst base stealing seasons in recent history.

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Major League Baseball handed down suspensions as a result of the Dodgers-Diamondbacks brawl on Tuesday night, and Ian Kennedy got the headline penalty, as he’ll be unable to pitch for 10 days after he decides to strategically drop his appeal. And, looking at the Diamondbacks schedule, that will almost certainly happen on Monday, and Kennedy will become the latest starting pitcher to be suspended by MLB without actually being punished in any real way.

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Last offseason, the Diamondbacks participated in a three-way trade that brought them shortstop Didi Gregorius, and that cost them Trevor Bauer. Other pieces were involved, but we’re not going to talk about them here. Arizona drew some criticism, as people weren’t sure Gregorius would stick as a regular shortstop, but general manager Kevin Towers saw to it to compare Gregorius to a young Derek Jeter:

“When I saw him, he reminded me of a young Derek Jeter,” Towers said.

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Ian Kennedy cut his finger recently while washing dishes. As a result, Tyler Skaggs got the start in the early game of Monday’s Memorial Day twinbill against the Rangers, and he acquitted himself quite well. The start threw into sharp relief just how necessary Kennedy is to the Dbacks plans, both current and future. As we move further away from his breakout season, it is fair to wonder — is Kennedy about to be the odd man out in the Arizona rotation?

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The lowest ERA on the Diamondbacks right now belongs to Matt Reynolds. The lowest ERA on the Diamondbacks belonging to a pitcher who’s thrown more innings than a really long baseball game belongs to Patrick Corbin. Monday night, Corbin took the mound in Coors Field with an ERA of 1.52. He came away with an ERA even lower than that, and at present his ERA is the second-lowest in baseball among starters. Only Clayton Kershaw has Corbin beat — Matt Harvey, Shelby Miller, Felix Hernandez, and everyone else is behind him. And Kershaw’s allowed three unearned runs. Corbin has yet to allow his first.

It’s been a brilliant season-opening stretch for a guy who now looks to have been underrated in the past. To pick on Keith Law, here he is calling Corbin a back-end starter, and here he is calling Corbin a No. 4. To pick on us, here’s Corbin as a potential No. 3, and here he is as a potential No. 3 again. Previously, it was thought that Corbin’s ceiling would be that of a mid-rotation starter, perhaps. Already, he’s exceeding that, and I’m not blaming the prospect evaluators. Corbin’s just beating expectations, and that’s worthy of a deeper dig.

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Some weeks, there are major developments in the business of baseball — like a team signing a new local TV contract. Some weeks, there are little developments on the big developments. My posts tend to focus on the big developments, but that leaves you in the dark on the little developments, unless those little developments become big developments down the road.

Dollars & Sense keeps you up to date on the smaller stories that are important but may not justify a separate post. Today, we have news on attendance through the first quarter of the seasons and expanded in replay in 2014.

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With J.J. Putz’s elbow hurting, the Diamondbacks have turned to Heath Bell in the closer’s role. Tuesday night against Atlanta, Heath Bell converted his fifth save in six last-inning save opportunities in impressive fashion: after the first baserunner reached on an error, Bell struck out Evan Gattis and Dan Uggla swinging before retiring Chris Johnson on a fly ball to center. Wednesday afternoon, Bell added another, as he worked another hitless and walkless inning, including a strikeout of Justin Upton.

Bell’s debut outing with Arizona looked like the beginning to another ugly season, as he allowed three runs on four hits (including two home runs) and managed just one out. Since then, Bell has been brilliant: over 18 appearances (17.2 innings), Bell hasn’t allowed a home run and has recorded 22 strikeouts against just two walks, good for a 3.06 ERA and a stunning 0.87 FIP. These two saves against Atlanta featured the drivers behind Bell’s success: impeccable fastball control, and the willing to go to it whenever he needs a strike.

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Entering the spring, Gerardo Parra was once again a man without a home. After a starting a career-high 124 times in 2011, and doing so handily, Parra shifted back into part-time status in 2012. But with Adam Eaton and Cody Ross both suffering injuries before the season began, and Jason Kubel landing on the disabled list with a strained left quad two weeks into it, Parra has once again been seeing regular action. In the process, he has not only acquitted himself well, but also helped hold down the Dbacks offense in the early going.

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