Astros Acquire Ken Giles, Underrated Relief Ace

Since the Astros bullpen blew a 6-2 lead in Game 4 of the ALDS, it’s been widely expected that they were going to make moves to reinforce their relief corps this winter. After a few months of kicking around various options, the team today acquired a potentially dominating new closer.

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Giles might not yet have the household name of an elite relief ace, but over the last couple of years, he’s absolutely pitched like one.

2014-2015 Top 10 RPs by xFIP-
Name IP BB% K% GB% HR/FB LOB% BABIP ERA- FIP- xFIP- WAR RA9-WAR
Andrew Miller 124 8% 42% 48% 11% 81% 0.252 49 46 46 4.2 4.4
Aroldis Chapman 120 12% 46% 39% 5% 84% 0.316 46 37 50 5.2 4.8
Dellin Betances 174 10% 40% 47% 9% 88% 0.248 36 50 54 5.6 7.5
Kenley Jansen 117 6% 39% 35% 10% 82% 0.312 72 54 55 3.9 2.9
David Robertson 127 7% 36% 40% 15% 72% 0.280 81 64 56 3.4 2.3
Zach Britton 142 7% 26% 77% 18% 82% 0.256 44 65 60 3.2 5.5
Craig Kimbrel 121 10% 38% 44% 9% 81% 0.256 57 60 62 3.7 3.9
Brett Cecil 107 9% 33% 53% 9% 79% 0.312 65 59 63 2.5 2.5
Wade Davis 139 8% 35% 43% 3% 90% 0.231 25 44 63 5.0 7.2
Ken Giles 115 8% 33% 45% 3% 78% 0.297 40 47 69 3.7 3.2

Giles’ insanely low home-run rate is unlikely to last, but even with regression there, the strikeout numbers allow him to profile as a high-end closer. He’s not quite Craig Kimbrel, but he’s in that mold, and acquiring Kimbrel-lite isn’t so bad, especially when you are picking up five years of team control, though it should be worth noting that arbitration pays closers handsomely, and so he might not be a significant value for all five of those years if his salaries escalate quickly.

Still, this is a non-rental elite reliever, the kind of guy who can dramatically improve the Astros bullpen, and the type of pitcher who has seen his stock improve dramatically this winter. To land Giles, the team had to give up a valuable pitching prospect in Vincent Velasquez — who could profile better in relief himself, and might end up as a dominating relief ace himself if he can stay healthy — and former first-round pick Derek Fisher, along with a couple of other parts. The trade makes plenty of sense for the Phillies, who don’t need to be stockpiling relievers while they rebuild, but also gives the Astros quite a bit more certainty in 2016.





Dave is the Managing Editor of FanGraphs.

17 Comments
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Well-Beered Englishman
10 years ago

The San Antonio Spurs are relieved that Derek Fisher is no longer playing for one of the other Texas teams.

Phil Jackson
10 years ago

He does get to coach the next Nowitzki, however.

Dang
10 years ago

My only fangraphs community article was comparing Giles and Kimbrel. He’s fantastic, and will be missed in Philly.
http://www.fangraphs.com/community/2014-ken-giles-2011-craig-kimbrels-long-lost-brother/

RAJ's first base stopwatch
10 years ago
Reply to  Dang

There was some concern early on last year with Giles about significant diminished velocity. It came back after a while though. Might be nothing, might be something.

Warriors
10 years ago

Trading from a position of strength.

Jeff Luhnow knows what to do.

JS7
10 years ago

Astros secretly re-signed Carter so they could trade him to Philly.

Phillies
10 years ago

Bring back RAJ, at least he held out for too much.

Rubén Amaro, Jr.
10 years ago
Reply to  Phillies

I am still here.

RAJ's first base stopwatch
10 years ago
Reply to  Phillies

RAJ did just fine restocking the system in the end.

novaether
10 years ago

If you think that was RAJ’s doing, then you had an epic MacPhail.

schmenkman
10 years ago
Reply to  novaether

I’m sure MacPhail was looking over his shoulder and approving things, but yes – it was mostly RAJ’s doing, IMO.

BenRevereDoesSteroids
10 years ago

I came here hoping to see the Beanegraphs spin on the Lawrie trade.

Phillies113
10 years ago

This is a solid return for a guy like Giles. I will miss him and that strange little crouch thing he did on the mound between pitches, but this ultimately is for the best.

Hank
10 years ago

So does Velasquez alone have about as much (or more?) surplus value as Giles?

The Phillies got the better side of this deal if we stack up prospect value and surplus projections and mention the “other parts”, no?

Joe Joe
10 years ago
Reply to  Hank

Using Steamer projections, aging curve calcs, and prospect valuation charts, Phillies probably win by a bit. That said, steamer is regressing away almost 33% of Giles’s value that scouting may contradict shouldn’t happen. VV is also a greater injury risk.

That said, I still think Phillies will win WAR over long haul. Astros, in my estimation, look to be in a good spot for contending for playoffs next few years. Astros will be able to get Giles into more playoff innings than VV if they make a couple over next 5 years. Just not sure if it wise to bank on increased usage in playoffs.

joser
10 years ago
Reply to  Hank

Future value always comes with large error bars, larger the further out that future is. This is a reasonable trade for both sides, the kind a team moving out of the rebuilding phase should make with a team moving into it (however belatedly).

Matthew
10 years ago

The trade totally changes now that Appel was included IMO.