If you’re a general manager itching to cause a stir among your team’s most devoted fan base, you can announce that you’re moving one of your most promising pitching prospects into the bullpen. For as little as some fans might actually know, one thing that’s widely understood is that a good starting pitcher is better than a good relieving pitcher. More valuable, anyway. So fans are inclined to be patient, letting pitching prospects sort their things out. Moving to the bullpen is often considered a last resort. Something that should happen only to lesser players. Fans don’t love when it’s a move that’s made early.

And just generally speaking, I’m sympathetic to that perspective. I’m mostly in alignment — I, too, like being patient with prospects. I want starters to have time to develop. But on the other hand, there’s the case of Edwin Diaz. Before the year, Baseball America ranked Diaz as the No. 2 prospect in an admittedly lousy Mariners system. Early in the season, the Mariners announced that Diaz was being transitioned to relief, citing an inability to learn a third pitch. At the time, the decision was questionable. I suppose it still is, and forever will be. But, why do teams move starters into the bullpen? Because relievers can move quickly, and the best ones can become hugely important. Diaz, already, has become hugely important. Diaz is already pitching like one of the very best relievers in baseball.

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As it has been the past few years, the 2016 non-waiver trade deadline brought about a flurry of activity that was hard to keep up with even if it was the only thing you were doing. Since most of us have other things that we have to or would like to occupy our time with, we figured we would save you some hassle and create an omnibus post with all of our trade deadline content so that you have it all in one place. For clarity’s sake, I’m going to limit this to articles about trades that actually took place.

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Ariel Miranda sounds like one of those weird Disney Princess mashups that were fashionable clickbait last year — Click to see the Disney Princesses re-imagined as Sex and the City characters! Click to see the Disney Princesses re-imagined as members of the 2003 Philadelphia Eagles Secondary! Click to see the Disney Princesses re-imagined as America’s most infamous serial killers! — but he is an actual baseball pitcher who has come on of late and become a fairly interesting prospect of advanced age.

Miranda, a 6-foot-2 Cuban lefty, signed in May of 2015 after he defected and established residency in Haiti. He pitched across three levels during his first full season, finishing his initial domestic campaign with a solid eight-start run with Double-A Bowie. Miranda has passed 2016 in Triple-A (except for a two-inning shot of espresso with the Orioles early in July) and, while a 3.93 ERA from a 27-year-old isn’t exactly sexy, he’s flashed viable big-league stuff. His fastball will touch 95 mph on occasion and sits 90-93. Miranda has a quick, athletic arm and incorporates his lower half into a picturesque delivery that he doesn’t always finish. When he’s not driving the ball down, he lives either up in the zone or out of it altogether, something of which major-league hitters will take full advantage, but he’s capable of missing bats in the zone with his fastball. Miranda has been able to throw plenty of strikes this season, just not always where he wants to, and his control is ahead of his command.

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A bevy of trades went down over the weekend, as this year’s trade deadline-season entered into full swing. Here are the prospects who changed teams the last couple of days, as evaluated by my newly updated KATOH system. KATOH denotes WAR forecast for first six years of player’s major-league career. KATOH+ uses similar methodology with consideration also for Baseball America’s rankings.

The Andrew Miller Trade

Clint Frazier, OF, New York (AL)

KATOH: 2.7 WAR
KATOH+: 4.7 WAR

Frazier had been promoted to Triple-A a week ago after slashing a strong .276/.356/.469 with 13 steals at Double-A this year. He pairs a high walk rate with decent power and speed, making him one of the most promising offensive prospects in baseball. Despite possessing average speed, Frazier plays mostly the corner-outfield spots these days, and hasn’t graded out particularly well there defensively. This suggests most of his big-league value will come from his hitting. Still, considering he’s a 21-year-old who’s already mastered Double-A, his future looks bright.

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The Marlins had to pay a decently high price for Andrew Cashner. Jon Morosi is unironically tweeting about the ongoing Jeremy Hellickson sweepstakes. It’s important to establish the market context in which the Orioles have now traded for Wade Miley. It’s been obvious for months the Orioles could use some help in the rotation. The farm system didn’t make it realistically possible for them to look at higher-level solutions. They’d have to settle for what they could afford. Wade Miley is what they could afford, with the Mariners getting Ariel Miranda in exchange. There’s no money changing hands. This is about as uncomplicated as a move can get, with Miley being tremendously dull and still presumably helpful.

That’s the thing about the Orioles. Even though they’re a first-place team, it’s a team that had issues. Recent results be damned, the Orioles, in theory, can hit. We all know they can relieve. The rotation has been bad behind Chris Tillman — so bad that Wade Miley is an improvement. There aren’t many contending teams that Miley would make meaningfully better, but that’s the Orioles’ burden and blessing.

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I’m going to let you in on a little writer secret. We don’t just write exclusively for traffic, but without traffic, there’s no FanGraphs. So we do want more clicks instead of fewer clicks, and when you’re composing a post about Chris Iannetta, it can be beneficial to disguise the subject. You might not be interested in reading about Iannetta, if you knew that’s what you’d be doing. But now you’re in, see. And you’re probably going to see this whole thing through, because the brain doesn’t want to acknowledge being teased. Now that I think about it, this isn’t a writer secret at all. This is just the Internet. Well anyway, there is something crazy here, so let’s get to that.

Jerry Dipoto didn’t set expectations too high for the Mariners, saying the goal was to build a team that could win 85 games or so. As part of that construction, Dipoto targeted bounceback candidates, and one of them was Chris Iannetta, who was coming off a down year at the plate. At the very least, Iannetta would improve upon the Mariners’ miserable catching baseline from 2015. But there was something even more promising in there: In 2015, Iannetta learned how to frame. He became one of the better catchers with regard to stealing or keeping strikes, and the story all made sense. It was easy to buy into Iannetta as a solid receiver. That, in turn, made it easy to buy into him as a solid regular catcher.

You know what they say about buying into things. Don’t ever bother buying anything. Iannetta’s bat hasn’t bounced back. But, far weirder, the receiving has completely deteriorated.

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The Seattle Mariners are in a tough spot. They’re not a bad team, sitting a game over .500. By both Pythagorean wins and BaseRuns, they profile a few games better than that. Over the course of the rest of the season, they’re expected to continue to be a bit above average and our projections have them finishing at 83-79 for the year. That’s not a bad season — and if the team made a few big moves and caught a few breaks, they might even sneak their way into the playoffs where anything can happen. Unfortunately for the Mariners, that scenario isn’t very likely.

The division-leading Texas Rangers hardly seem invincible, but they’ve accrued a decent lead on the Mariners, while other divisional-rival Houston possesses the advantage both of more wins than the Mariners and more talent. This makes the M’s current chances of winning the division rather low. (For an interactive version of the chart, click here.)

They’re not out of it, as you can see, but they do face difficult odds. And keep in mind: these odds are reflective of the talent each club currently possesses on hand. Both the Rangers and Astros are expected to be buyers, and further moves by those teams figure to push their odds higher and the Mariners’ lower unless they counter with a move of their own.

As for the wild card, the task is equally as daunting. The chart below shows the wild-card probabilities only and do not include a team’s chances at the division. (Interactive version here.)

If you’re willing to hand the American League Central to Cleveland, that leaves four additional available playoff spots. Seattle is seventh on that list, with less than a 10% shot. That the top three teams all play in the AL East — and also expected to be buyers before the deadlines — makes Seattle’s predicament all the more obvious. The team isn’t likely to win, so the team should sell. How they should sell, though, is a bit more difficult to decipher.

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We all knew Dan Vogelbach’s days in the Cubs’ organization were numbered. His lackluster range limit to first base, and if we’re being serious, even that’s a stretch. He didn’t have a future with the Cubs. Not only do they lack a DH, but they also have more quality hitters than they have lineup spots. A trade was imminent, and the Cubs finally pulled the trigger on Wednesday night, dealing the 23-year-old slugger for unheralded — yet effective — reliever Mike Montgomery and Double-A hurler Paul Blackburn. Triple-A pitcher Jordan Pries also heads to Chicago in the deal.

Dan Vogelbach, 1B, Seattle (Profile)

KATOH Forecast for first six seasons: 2.8 WAR

Vogelbach offers zero defensive value, which means he’ll need to hit a lot to get by in the big leagues. To his credit, however, his exploits in the minors this year suggest he might hit enough to make for a productive DH. He’s slashed a gaudy .318/.425/.548 in Triple-A, and has little left to prove in the minor leagues. KATOH isn’t crazy about Vogelbach on account of his defensive limitations, lack of speed and iffy contact numbers. Vogelbach’s power is excellent, but the other facets of his game threaten to chip away at his value.

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The Cubs had no room for Dan Vogelbach. Hit though he may, the absence of the designated hitter in the National League was always an inhibitor for his future there, to say nothing of the wealth of young bats the Cubs have amassed at or near the major-league level. For several months, Vogelbach was an obvious potential trade candidate simply because the Cubs had nowhere to put him. Yesterday, that trade occurred: Chicago sent Vogelbach and Paul Blackburn to Seattle in exchange for Mike Montgomery and Jordan Pries.

Then a third baseman, Vogelbach won a 3-A state baseball championship in high school at Bishop Verot High School in Fort Myers. He tipped the scales at close to 280 pounds at the time and was asked to shed weight early in his pro career with the Cubs. He’s now listed at 6-foot, 250 pounds. There are certainly baseball players built like Vogelbach who are still able to effectively execute all aspects of their given position. Stories about Bartolo Colon‘s athleticism or Livan Hernandez’s flexibility are common in scouting circles and it’s not impossible that someone built like Pablo Sandoval or John Kruk can maintain enough lateral agility to effectively play a corner infield spot. Vogelbach doesn’t appear to be one of those players. He’s not a good athlete and has issues with range, footwork, flexibility and throwing accuracy. He’ll make the occasional, spectacular-looking, effort-based play but hasn’t shown enough technical refinement in his five pro seasons to convince scouts he can play a position.

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Everybody wants Andrew Miller and Aroldis Chapman. If the Yankees elect to sell off, everybody will want Andrew Miller and Aroldis Chapman. I don’t need to explain to you why — they are two very obviously dominant left-handed, late-inning relievers. If the Yankees sell, they’ll ask for a high price. Teams, in turn, will pay high prices. You know how the trade deadline works.

People have linked the Cubs and the Yankees. The Cubs don’t need to improve much, but they’d like a steadier bullpen, and they could use a steady lefty. The Yankees present options. On a different tier, I figured the Cubs might have interest in Will Smith. I never once thought about Mike Montgomery. The Cubs just traded for Mike Montgomery. It might not be all they do, but it’s what they did today.

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