Coming in with Runners On – Not our Forte.
This snippet here addresses one of my main gripes about the bullpen and how it's being handled. Our manager seems content to leave our pitchers in past when pitch counts suggest it's time for the yank, and let them get into trouble before bringing in his setup staff. One of the recipients of these particular hard knocks has been our right-handed setup man Rafael Betancourt.
On paper, Betancourt's been a stud made of awesomeness. As a Rockie, he's posted a 2.05 ERA (2.14 FIP, 2.15 tRA) and struck out 23 (2.89 K/BB) over 22.0 IP (29 G), and adding 0.8 WAR to the team. He's been more or less "nails", striking out 9.40 batters per 9, his highest rate since 2005 (9.71).
However, he seems to have been struggling lately, not being nearly as crisp as we're accustomed to. However, as I've screamed in game threads, it seems he's being brought in an awful lot to face hitters who've been dumped on him from the pitcher before letting runners on and then getting the hook. Logically, you're going to perform better with a clean slate to start with. What I am having trouble understanding is why we need to push a starter already at 110 pitches to start the 8th inning when we have a nails setup man and a lights out closer ready to roll. We're paying them, how about we use them?
Anyhow. I ran a quick study using Baseball-Reference.com (btw, check out Ubaldo's page) to see what Rockies Relievers do when the situations are tough, and when they're easy. I used a cumulative WPA to gauge the situations and see how "well" the guys perform when they have inherited runners and when the slate is clean for them. I use WPA so that we can get a look on their effect on the game, as ERA or whatever will attribute runs to other pitchers and such if there are inherited runners allowed, and that really doesn't tell us what we want to know. WPA will just answer the question: "did the pitcher improve the Rockies' chances of winning?"
Don't remember WPA? Refresh yourself, and then come join us after the jump.
So what we've done is taken the game logs from Baseball-Reference, and broken them down into games where our bullpen has had to deal with inherited runners, and games where they haven't. The results aren't terribly shocking, but interesting nonetheless. (note: these numbers don't include the past game or two.)
|
Name |
# of G w/o IR |
WPA |
# of G w/ IR |
IRS% |
WPA |
|
Betancourt |
17 |
0.65 |
11 |
47% |
-0.53 |
|
Daley |
36 |
0.75 |
15 |
31% |
-0.59 |
|
Morales |
22 |
0.72 |
13 |
33% |
0.11 |
|
Beimel |
12 |
-0.3 |
10 |
19% |
0.32 |
|
Street |
54 |
2.48 |
6 |
50% |
0.35 |
|
Fogg |
11 |
-0.2 |
11 |
42% |
-0.07 |
|
Belisle |
13 |
0.05 |
7 |
50% |
0.05 |
|
Rincon |
14 |
-0.2 |
10 |
0% |
0.54 |
(IR = Inherited Runners, IRS = Inherited Runners Scored, WPA = Win Probability Added)
In short, I can see the following here: Joe Beimel handles traffic well, but for some reason, struggles when given a clean slate. Betancourt and Daley shouldn't be brought in with runners on.
And the scariest point of all: Juan Rincon doesn't allow inherited runners to cross home plate. Period.
So here's the skinny. Rincon is scarily good at cleaning up somebody else's messes. But with no mess to clean, he makes his own. Beimel does the same thing.
Some combination of Morales/Daley, Betancourt, and Street should be our closing staff. They should also be brought in for a clean inning, none of this "oh hey there are 2 guys on and nobody out" nonsense.
Josh Fogg isn't a good pitcher. But that's not really news.
Matt Belisle is about as Meh as it comes. You can see by that 0.05 WPA on both sides of the chart that he really doesn't add much or take much from the team's chances of winning. It makes me laugh because it just speaks to his skillset - pretty boring - but it makes the most sense because for the most part, he's only tossed into very low leverage outings, mopup duty, where him allowing a run or two over however much work isn't really going to change the Rockies' chances of winning all that much. I'd wager if he was put into higher leverage situations regularly, you'd see quite a bit more on the WPA- side.
This is the kind of stuff that gets to me, the proper usage of our pitchers. Some can handle the heat, some just want to come in and get their own zeros and not worry about anyone else. They should be used as such.
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interesting stuff
I’ve always wondered about this — surprisingly high IRS% for street
if you're reading this, it means my undying support for your team will result in its failure.
by fantasyfencing on Sep 30, 2009 12:24 PM MDT reply actions
At what point
is your sample size statistically significant? I honestly don’t remember my statistics classes enough to remember how to determine this, but just looking at Rincon as the outlier, that maybe the sample size is not large enough to actually make a determination one way or another. How tough would it be to go back a couple of seasons?
Oh also.
Interesting stuff. I know that your interview with Marc Gustafson touched on this a little, but shouldn’t the front office be looking at things like this so that pitchers are being used correctly?
it's a manager thing
rather than a FO thing.
as for the SSS, thanks you jerk, everything is SSS.
I just didn’t want to go back 3 years of game logs and such, I wanted to stick with just Rockies and what they’ve done this season as Rockies.
Plus it’ll be hard to get that data for Morales, Daley, etc.
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by Andrew Martin on Sep 30, 2009 12:44 PM MDT up reply actions
Ha.
No problem. I wasn’t really trying to say, disregard this because SSS. Rather, asking at what point is this actually a true predictor going forward? Even seeing this, I wouldn’t necessarily want to bring Rincon in to the game in a high leverage situation with runners on, but at the same time I would maybe think twice about bringing Betancourt in with traffic as opposed to Beimel or Daley.
basing it on WPA basically means that it has little predictive value
at least going season-to-season. During this season, I think it’s a decent indicator.
Also, remember that Beimel has been brought in to face tough lefties.
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by Andrew Martin on Sep 30, 2009 1:08 PM MDT up reply actions
From your keyboard
to Tracy’s brain.
"Don't tell me about the world. Not today. It's springtime and they're knocking baseballs around fields where the grass is damp and green in the morning and the kids are trying to hit the curve ball." -Pete Hamill
haha yeah
we seem to have gotten over that HURDLE
we will end at 91-71 and the braves will end at 90-72...take it to the bank
by TuLoRocks2008 on Sep 30, 2009 12:36 PM MDT up reply actions
Well, maybe not, but
he might be a good pitcher to bring in during the sixth inning with two on two out, if the Rockies are down by a pair.
Yeah that's not exactly what I meant
I meant that I don’t want to think about Rincon in the postseason so I’m ignoring the comment altogether.
Rin-who?
http://twitter.com/blakebomber
So when there is a mess to clean up
Are you advocating for Rincon?
Great analysis, but I worry about SSS
"I am an optimist. It does not seem too much use being anything else." - W. Churchill
¡Vamos Rocosos!
Not really
but it’s more an issue of how to better use betancourt and such
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by Andrew Martin on Sep 30, 2009 1:26 PM MDT up reply actions
Yeah, Raf seems to get put into a jam a lot
But something needs to go deeper here for this to click with me. Raf allowed inherited runners to score in that game in SF. But he didn’t allow the tying run to score. Not all inherited runners are equally valuable. I am sure that WPA picks this up, but it seems the analysis needs to go deeper.
Not faulting your work at all. This is good stuff
"I am an optimist. It does not seem too much use being anything else." - W. Churchill
¡Vamos Rocosos!
WPA does cover that
coming into a tie game with a runner on 1B from the last pitcher and then giving up a triple scores the goahead run, and will result in a much higher win probability swing than would the same triple with a 7 run lead (or deficit).
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by Andrew Martin on Sep 30, 2009 2:06 PM MDT up reply actions
By the way, good idea on including WAR
I hate seeing arguments based solely on IRS%. It in no way takes into account how important those runs are, or what the likelihood of escaping with them stranded.
Allowing two runs to score when given a no-out, bases jammed situation is fare more tolerable than allowing a run from first to score with two outs, twice.
"I have no special talents. I am only passionately curious." - Albert Einstein
by Andrew T. Fisher on Sep 30, 2009 1:40 PM MDT up reply actions
If it's good for Raffy
why not Rincon? That’s your point, right?
Patrick Saunders: I think Kruk is lazy.
The issue with using WPA
is that it records performance, but says nothing about skill.
It’s like pitching wins, in a way. The guy with the highest WPA may or may not be the most talented player, but I’d wager that the top 10 every season in WPA have a lot of familiar faces.
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by Andrew Martin on Sep 30, 2009 2:08 PM MDT up reply actions
Top hitters: Albert Pujols, Prince Fielder
Top starters: Zach Greinke, Chris Carpenter
Top relievers: Jonathan Papelbon, Mariano Rivera.
So…yeah.
"I have no special talents. I am only passionately curious." - Albert Einstein
by Andrew T. Fisher on Sep 30, 2009 2:12 PM MDT up reply actions
The WPA on Betancourt makes a little more sense on why he "feels" a little unstable
despite awesome numbers.
Though note that -.568 WPA came from one pitch (Renteria). Throw that out and he has a better WPA than any Rockies pitcher other than Street, Jimenez, Marquis and Morales.
I know that’s cherry-picking a bit, but that’s the nature of sample sizes. Betancourt may never have an outlier appearance ever again in his career as in Frisco.
"I have no special talents. I am only passionately curious." - Albert Einstein
by Andrew T. Fisher on Sep 30, 2009 1:30 PM MDT reply actions
this is why it's tough to gauge a relief pitcher by anything other than component stats
one miserable outing might screw up their ERA (or WPA for that matter) and such so badly that it makes them look pretty average-to-awful, while they might have been nails most other outings.
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by Andrew Martin on Sep 30, 2009 2:10 PM MDT up reply actions
Rincon miust be ore clutch then Bentacourt
Brad Hawpe - Providing Air Conditioning to Catchers Everywhere.
Hey I'm on Youtube!
http://www.youtube.com/watch?v=_gAlLTZsGUg
Just so I can be a jerkface once today
I should point out that criticizing the use of relief pitchers incorrectly in inherited runner situations/clean slates is sort of a circular reference. We don’t know how they will do until they are given the opportunity. The sample size isn’t too much longer than the period necessary to evaluate it, if at all. Sure, you could go off of historical data, but even that is loony. Betancourt stranded something like 15 of 17 with Cleveland this season.
/Fist out, Poseidon back
"I have no special talents. I am only passionately curious." - Albert Einstein
by Andrew T. Fisher on Sep 30, 2009 3:04 PM MDT reply actions
But if you can compare how they perform with inherited runners and without
It can show things about their composure based on the results of their pitching.
Or you could just have a guy who gives up a single every inning no matter what, so you don’t want him in with a runner on 3B.
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by Andrew Martin on Sep 30, 2009 3:46 PM MDT up reply actions

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