Would Edwin Jackson Work as a Reliever?
Referencing Nate Silver's prior work on this topic, he found the the best starters-to-relievers transitions had the following traits:
- Higher walk rate.
- Higher strikeout rate.
- Indifference on fly/ground ball tendencies.
- Low IsoP.
Silver found the walk and IsoP qualities the most important. This is good news for Jackson, although his BB totals impressively dropped over one per nine. Jackson also had a lower IsoP than most, although this was more due to a high OBP than a low SLG. Some of the more successful shifters include LaTroy Hawkins and Tom Gordon, let's take a look at how Jackson's numbers compare to them.
| Pitcher | BB/9 | IsoP |
| Jackson | 3.78 | 0.163 |
| Hawkins | 3.09 | 0.184 |
| Gordon | 3.84 | 0.093 |
| Jimenez | 3.92 | 0.132 |
| Gossage | 3.62 | 0.116 |
| Gagne | 2.73 | 0.201 |
I was vastly against Edwin Jackson the starter, but call me crazy, I think I'm willing to give Edwin the reliever a shot.
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27 comments
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YOU ARE CRAZY
Brad Ziegler had a scoreless inning streak. Brad Ziegler had not met BJ Upton.
by P Brady on
Oct 30, 2008 9:24 PM EDT
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I thought the argument was it took him too long to warm up?
That, and he seems to throw the last 50% of his work better than the first 50%.
All I can think about was that last inning of work in Game 4 of the ALCS where he was handed a 8-9 run lead and had to get a visit from Hickey that inning. When you’re pitching while up that far, your job is quite simple.
by Jason Collette on
Oct 30, 2008 9:27 PM EDT
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Throwing really hard matters RJ!
Tools Whore
Sign Bonds!
by Tyler on
Oct 30, 2008 9:30 PM EDT
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As does throwing hard perfectly straight:

Brad Ziegler had a scoreless inning streak. Brad Ziegler had not met BJ Upton.
by P Brady on
Oct 30, 2008 9:33 PM EDT
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Yep - as one of the only people old enough in here to remember Hawkins as a rookie
by Jason Collette on
Oct 30, 2008 10:26 PM EDT
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*cough cough*
Vogt early, Vogt often.
by Brickhaus on
Oct 30, 2008 10:40 PM EDT
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You know blogging hasn't been around that long
when the older generation is mostly pushing 30.
Vogt early, Vogt often.
by Brickhaus on
Oct 30, 2008 10:41 PM EDT
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rj, ru saying edwin as closer next year?
i would feel more comfortable with him than percy and wheeler at this point
by RaysOfHope on
Oct 30, 2008 10:05 PM EDT
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Fine, let him be a reliever then.
But on someone else’s team. If he opens the season in the Rays’ bullpen, I may have to shoot myself. Why give him yet another shot while Niemann, Talbot, and Salas also deserve a chance?
"I never threw an illegal pitch. The trouble is, once in a while I toss one that ain't never been seen by this generation." - Satchel Paige
by Steve Slowinski on
Oct 30, 2008 11:11 PM EDT
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If Edwin has a good day noboby can beat him
but if he has a normal day he is dead meat.
by Penaholic on
Oct 31, 2008 8:52 AM EDT
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Edwin Jackson is one of the teams unsung heros this year
He never was injured and was always counted on to pitch. Then again keep in mind that the Rays were probably the only team in MLB this year to have the same starting 5 rotation throughout the entire season (except for the beginning with Kazmir and Garza’s little 15 day DL stint)
by Matt C on
Oct 31, 2008 10:28 AM EDT
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Calling Jackson an "unsung hero" is ridiculous just because he was healthy all year.
by walkoffwalk on
Oct 31, 2008 11:29 AM EDT
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Exactly the opposite
Edwin Jackson was overrated as one of the main heroes because of his percieved turnaround. I think this has been gone into enough in several previous posts. He has better stats this year than last, but those improvements fall in line with 3 things:
Scoring in the league was down this year
The Team defensive improvement that showed for all of the pitchers
The bullpen abandoned runners improvmenet that showed for all of the pitchers
In other words, he did not pitch any better this year than he did last year; he has benefited from a better team around him.
by kericr on
Oct 31, 2008 1:21 PM EDT
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i obviously agree with this plan
http://www.draysbay.com/2008/8/31/604873/jackson-v-sonny-bullpen-de
but i think his trade value is higher than his bullpen value. pulling things out of my backside, i’d say Jackson would be a 3.50 ERA reliever
Beyond the Boxscore // Calling BJ Upton lazy is lazy.
by Sky Kalkman on
Oct 31, 2008 11:26 AM EDT
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I agree that Ejax has lightning in his arm.
I would see no reason not to try him out as a closer, or reliever. However, Ejax has been horrid early on in games. Between pitches 1-15 opponents are hitting .343 over the last three years’ .304 between 16-30; .243 between pitches 31-45. These stats are over a three period. This tells me it takes Edwin a while to calm down and get outs.
Now, you look at a guy like JP Howell who was lights out the first few times facing a guy, then got lit up as the game went on. JP seems to work as a reliever because he can turn it on earlier in the game.
Bottom line: Ejax has the making of a lights out reliever just needs to channel his talents. If only he had some options available so he could learn how to be a closer in the minors.
The Rays lost the World Series to bad umpires, Mother Nature, and the Philadelphia Phillies.
by thebaddancingraysfan on
Oct 31, 2008 12:05 PM EDT
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or it means that early pitches come against the top of the lineup and the 31-45th pitches the bottom of the lineup.
Beyond the Boxscore // Calling BJ Upton lazy is lazy.
by Sky Kalkman on
Oct 31, 2008 12:12 PM EDT
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HAY GUYZ
WE HAZ FOUND A USE 4 JACKSON!
Sternberg/Friedman '08!!
by JMB on
Nov 1, 2008 9:14 PM EDT
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