Should the Phillies trade for or buy a closer this offseason?

SEATTLE, WA - SEPTEMBER 29: Reliever Edwin Diaz #39 of the Seattle Mariners delivers a pitch during the ninth inning of a game against the Texas Rangers at Safeco Field on September 29, 2018 in Seattle, Washington. The Mariners won the game 4-1. (Photo by Stephen Brashear/Getty Images)
SEATTLE, WA - SEPTEMBER 29: Reliever Edwin Diaz #39 of the Seattle Mariners delivers a pitch during the ninth inning of a game against the Texas Rangers at Safeco Field on September 29, 2018 in Seattle, Washington. The Mariners won the game 4-1. (Photo by Stephen Brashear/Getty Images)
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PHILADELPHIA – MAY 12: Ken Giles #53 of the Philadelphia Phillies throws a pitch in the eighth inning during a game against the Pittsburgh Pirates at Citizens Bank Park on May 12, 2015 in Philadelphia, Pennsylvania. The Pirates won 7-2. (Photo by Hunter Martin/Getty Images)

Philadelphia also has a history of trades involving young relievers, most notably Ken Giles. Built up as an All-Star closer who threw a wicked-fast fastball, Giles was the Phillies’ most valuable asset in the middle of a rebuild. They shipped him to Houston after two years with a career 1.49 ERA in 113 games and just 24-years-old.

The Astros sent five players to the Phillies for Giles, including former number one pick Mark Appel. In all the Phillies received Appel, Vince Velasquez, Brett Oberholtzer, Thomas Eshelman, and Harold Arauz for Giles and prospect Jonathan Arauz, ironically no relation to the prospect Houston sent back in the deal.

HOUSTON, TX – OCTOBER 28: Ken Giles #53 of the Houston Astros walks off the mound as he exits the game during the ninth inning against the Los Angeles Dodgers in game four of the 2017 World Series at Minute Maid Park on October 28, 2017 in Houston, Texas. (Photo by Tom Pennington/Getty Images)
HOUSTON, TX – OCTOBER 28: Ken Giles #53 of the Houston Astros walks off the mound as he exits the game during the ninth inning against the Los Angeles Dodgers in game four of the 2017 World Series at Minute Maid Park on October 28, 2017 in Houston, Texas. (Photo by Tom Pennington/Getty Images)

Giles struggled immediately in Houston, a city on the verge of it’s first World Series victory. In 2016 he had a 4.11 ERA and blew five saves in 20 attempts. A decent 2017 didn’t carry over for Giles, who publically ridiculed manager A.J. Hinch, and he was subsequently traded to Toronto.

The Phillies haven’t turned out as clear winners in the Giles deal, especially after Appel decided to step away from baseball.

Eshelman was left vulnerable to the Rule 5 Draft and Arauz had a 4.69 ERA in Reading and Lehigh Valley last year.

Velasquez could turn this deal around if he can stick a starting job, but his inconsistencies have made him one of the more frustrating players in the organization.

There were several relievers moved at the trade deadline, including Zach Britton, Jeurys Familia, and Brad Hand. Britton and Hand each had ERA’s under three after they were traded, while Familia’s was at 3.45 for the A’s.

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