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Article: Twins Must End Revolving Door At Shortstop

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#21 beckmt

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Posted 28 November 2012 - 09:38 AM

IT still could be correct to sign Stephen Drew. This is not likely to happen because TR has commented on the radio that all money available is going to be spent on pitching. Still need players (I wonder what Delmon Young wants, then we could trade Willingham for money pitching, Just Joking))
We are at least 2 years away from filling this black hole with a quality player, not a journeyman(best case)). Get some help.

#22 rgslone

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Posted 28 November 2012 - 08:12 PM

Trade Revere to the Reds for Cozart = problem solved.

#23 AllhopeisgoneMNTWINS

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Posted 28 November 2012 - 08:26 PM

Sign Stephen Drew...Problem Solved.

#24 jokin

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Posted 28 November 2012 - 09:20 PM

What may be the main problem for the Twins is that in this key position in the middle of the infield, the Twins don't realize that you can't get a decent SS for less than $5-$7M (not good or great, but decent). They have a knack for drafting decent to great CF'ers, so they've had a good pipeline of those since Puckett. They can't draft a SS to save their lives, and when they get a decent one like Hardy, they trade him because he's too expensive. As much as I hate the Yankees, they invested in Jeter and built around him, and because of that they have nearly constantly been in the playoffs during his tenure. The Twins need to make SS a cornerstone position - which they never have in over 50 years of existence.


The Red Sox have two ready-to-emerge potential cornerstone SSs and are ready to deal. Why not get both of them in trade for Mauer?

Problem solved for the next decade and a half.

#25 cmathewson

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Posted 28 November 2012 - 09:46 PM

Yeah, Hardy was the best fielding shortstop around here since Gagne. He even made those around him better by getting to balls in their zones. Valencia had a +13 UZR that year. Now he's out of a job. And say what you want about Hardy's offense, it was better than the shortstops we've had around here before or since. The Delmon deal, the Capps deal and the second Hardy deal were each worse than any trade Ryan ever made.

#26 Cris E

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Posted 28 November 2012 - 10:34 PM

This hole is probably more important than a third SP. As mentioned, CIN has shortstops and pitchers and MIN has CF to move, so that could work. I'd love to see S Drew contacted. There are options.

#27 Guest_USAFChief_*

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Posted 28 November 2012 - 11:24 PM

That Valencia "had a +13 UZR that year" says more about UZR than it does about Valencia, or Hardy for that matter. And it doesn't say anything good.

i do agree it was a head scratching mistake to dump Hardy though.

#28 snepp

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Posted 29 November 2012 - 12:24 AM

No, it says more about the misuse of a small sample than it does about UZR.


And he was +6, not 13, in said sample (roughly the equivalent of one month's worth of PA's).

#29 Top Gun

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Posted 29 November 2012 - 12:57 AM

You can;t buy everything and you can't buy a ss. Play the one you got you got plenty now to choose from.

#30 Guest_USAFChief_*

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Posted 29 November 2012 - 06:50 PM

No, it says more about the misuse of a small sample than it does about UZR.


And he was +6, not 13, in said sample (roughly the equivalent of one month's worth of PA's).


I've never understood the theory that something which everyone says is inaccurate in small samples is suddenly accurate if you pile enough of those inaccurate small samples on top of each other.

That seems to me like saying "I know 1 + 1 doesn't equal 3, but if I add 1 + 1 = 3 enough times, I'm sure it will be correct."

A large sample size doesn't get accurate by adding together a bunch of inaccurate small samples.

#31 Riverbrian

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Posted 29 November 2012 - 06:53 PM

If anything suggests that Valencia is good defensively... It is wrong!

#32 snepp

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Posted 30 November 2012 - 04:23 AM

I've never understood the theory that something which everyone says is inaccurate in small samples is suddenly accurate if you pile enough of those inaccurate small samples on top of each other.

That seems to me like saying "I know 1 + 1 doesn't equal 3, but if I add 1 + 1 = 3 enough times, I'm sure it will be correct."

A large sample size doesn't get accurate by adding together a bunch of inaccurate small samples.


Drew Butera has hit incredibly well over short stretches of time, but given a large enough sample, it inevitably regresses to his true level of putridity. It's no different for something like UZR, odd things can happen in small samples.

#33 Brock Beauchamp

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Posted 30 November 2012 - 08:46 AM

No, it says more about the misuse of a small sample than it does about UZR.


And he was +6, not 13, in said sample (roughly the equivalent of one month's worth of PA's).


I've never understood the theory that something which everyone says is inaccurate in small samples is suddenly accurate if you pile enough of those inaccurate small samples on top of each other.

That seems to me like saying "I know 1 + 1 doesn't equal 3, but if I add 1 + 1 = 3 enough times, I'm sure it will be correct."

A large sample size doesn't get accurate by adding together a bunch of inaccurate small samples.


http://en.wikipedia....f_large_numbers

Roll a six-sided dice once and you may get a six. Terribly inaccurate if you're trying to average a dice roll.

Roll that same die 10,000 times and that average moves to 3.5. The roll of six was not representative of a typical dice roll but it still counts. Other times, you'll counter it with a roll of one if you repeat the process enough times. At the end of the day, you'll end up where you expect to be: 3.5. An accurate representation of an "average" dice roll.

For your "1+1=3" comparison to work, you have to assume that all methods of recording defensive metrics are wrong. If that's the case, so be it... I'm not going to argue that point with you because it would take days and math I don't care to calculate. But if you believe them to be *generally* accurate, then the Law of Large Numbers applies.

#34 Guest_USAFChief_*

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Posted 30 November 2012 - 08:58 AM

I've never understood the theory that something which everyone says is inaccurate in small samples is suddenly accurate if you pile enough of those inaccurate small samples on top of each other.

That seems to me like saying "I know 1 + 1 doesn't equal 3, but if I add 1 + 1 = 3 enough times, I'm sure it will be correct."

A large sample size doesn't get accurate by adding together a bunch of inaccurate small samples.


Drew Butera has hit incredibly well over short stretches of time, but given a large enough sample, it inevitably regresses to his true level of putridity. It's no different for something like UZR, odd things can happen in small samples.


Except nobody says, "I know the numbers say Butera hit .350 over the last month. But that's not what happened. I know he's a bad hitter, therefore that couldn't have happened."

But that's exactly what the inventor of UZR, and others, say about defensive metrics.

Either Valencia saved 6 runs that year, or the metric is extremely unreliable at best, worthless at worst. Which is it?

BTW, do you agree with the idea (as implied above) that Valencia's UZR was positively influenced by playing next to Hardy? Or, as I've seen stated here that Span's UZR benefitted from Revere? If that's the case, wouldn't that be another reason to question whether UZR actually measures anything?

#35 Brock Beauchamp

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Posted 30 November 2012 - 09:01 AM

[quote name='USAFChief'][quote name='snepp'][quote name='USAFChief']I've never understood the theory that something which everyone says is inaccurate in small samples is suddenly accurate if you pile enough of those inaccurate small samples on top of each other.

That seems to me like saying "I know 1 + 1 doesn't equal 3, but if I add 1 + 1 = 3 enough times, I'm sure it will be correct."

A large sample size doesn't get accurate by adding together a bunch of inaccurate small samples.[/QUOTE]

Drew Butera has hit incredibly well over short stretches of time, but given a large enough sample, it inevitably regresses to his true level of putridity. It's no different for something like UZR, odd things can happen in small samples.[/QUOTE]

Except nobody says, "I know the numbers say Butera hit .350 over the last month. But that's not what happened. I know he's a bad hitter, therefore that couldn't have happened."

But that's exactly what the inventor of UZR, and others, say about defensive metrics.

Either Valencia saved 6 runs that year, or the metric is extremely unreliable at best, worthless at worst. Which is it?

BTW, do you agree with the idea (as implied above) that Valencia's UZR was positively influenced by playing next to Hardy? Or, as I've seen stated here that Span's UZR benefitted from Revere? If that's the case, wouldn't that be another reason to question whether UZR actually measures anything?[/QUOTE]

We've been through this sooooo many times, Chief. Nobody says "that didn't happen". They say "that was a statistical variance". It happened. Just as Butera hitting a homerun is not indicative of his usual performance, Delmon Young making an out-of-zone diving catch is not indicative of his usual performance. That doesn't mean it did not happen, it states that it is outside the statistical mean.

#36 mike wants wins

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Posted 30 November 2012 - 09:05 AM

It is not a question of if it measures"anything". It is a question of how well it measures things. The formulas do not yet know how to factor in defensive shifts, or the effect of other players.

#37 Brock Beauchamp

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Posted 30 November 2012 - 09:18 AM

It is not a question of if it measures"anything". It is a question of how well it measures things. The formulas do not yet know how to factor in defensive shifts, or the effect of other players.


And those are absolutely valid criticisms of the metrics. I don't think anyone would argue that there isn't room for improvement. Defensive metrics are barely out of their infancy; they have a lot of room to grow and improve. Even I try to avoid relying on them too much. WAR is a good quick-and-dirty metric but I wouldn't base my entire opinion on the metric because of its reliance on somewhat flawed defensive ratings.

But we're off to a good start and the metrics continue to improve as they are refined.

#38 SpiritofVodkaDave

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Posted 30 November 2012 - 09:25 AM

[quote name='USAFChief'][quote name='snepp'][quote name='USAFChief']I've never understood the theory that something which everyone says is inaccurate in small samples is suddenly accurate if you pile enough of those inaccurate small samples on top of each other.

That seems to me like saying "I know 1 + 1 doesn't equal 3, but if I add 1 + 1 = 3 enough times, I'm sure it will be correct."

A large sample size doesn't get accurate by adding together a bunch of inaccurate small samples.[/QUOTE]

Drew Butera has hit incredibly well over short stretches of time, but given a large enough sample, it inevitably regresses to his true level of putridity. It's no different for something like UZR, odd things can happen in small samples.[/QUOTE]

Except nobody says, "I know the numbers say Butera hit .350 over the last month. But that's not what happened. I know he's a bad hitter, therefore that couldn't have happened."

But that's exactly what the inventor of UZR, and others, say about defensive metrics.

Either Valencia saved 6 runs that year, or the metric is extremely unreliable at best, worthless at worst. Which is it?

BTW, do you agree with the idea (as implied above) that Valencia's UZR was positively influenced by playing next to Hardy? Or, as I've seen stated here that Span's UZR benefitted from Revere? If that's the case, wouldn't that be another reason to question whether UZR actually measures anything?[/QUOTE]
Though I am not a fan of your UZR bashing, I will say that over the years I have grown to trust UZR less and less but it still has plenty of value when used to show the WHOLE picture of what a player does, this includes: Sabr stats, traditional stats, scouting reports and the good old eyeball test. Anyone who only uses UZR or WAR to claim a player is great is almost as foolish as someone who only uses RBI to state the same thing.

You are correct with Span, his UZR doubled by having Revere in the OF along side him, which makes perfect sense.

#39 SpiritofVodkaDave

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Posted 30 November 2012 - 09:26 AM

It is not a question of if it measures"anything". It is a question of how well it measures things. The formulas do not yet know how to factor in defensive shifts, or the effect of other players.


And those are absolutely valid criticisms of the metrics. I don't think anyone would argue that there isn't room for improvement. Defensive metrics are barely out of their infancy; they have a lot of room to grow and improve. Even I try to avoid relying on them too much. WAR is a good quick-and-dirty metric but I wouldn't base my entire opinion on the metric because of its reliance on somewhat flawed defensive ratings.

But we're off to a good start and the metrics continue to improve as they are refined.


The fact is, until we get FieldFx defensive statistics will continue to be pretty flawed.

#40 Guest_USAFChief_*

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Posted 30 November 2012 - 09:33 AM

We've been through this sooooo many times, Chief. Nobody says "that didn't happen".


We have been through this, and I've explained why "the law of large numbers" isn't applicable, when you don't know the accuracy of the data you're inputing.

As for "that didn't happen," From Mitchel Lichtman ("MGL" on various chat boards, the man responsible for UZR):


[FONT=Microsoft Sans Serif]People often say something like, “Well, he had a +10 UZR last year, which means that he actually played well, even though he might be an average or even below average defender.” For example, Jeter had a very nice UZR in 2009, a decent one in 2008, and some terrible ones for many years prior to that. So, he is a perfect example of a below-average defender who played excellent defense last year and pretty good defense the year before, right? Well, maybe and maybe not. A player’s UZR does not necessarily tell you how he actually played just as it does not necessarily tell you what his true talent is. That is a very important point. It is not like we pulled a coin from our pocket and flipped it 100 times and came up with 60 heads (which is entirely possible, even though we presumably have a fair coin). In that case, we can safely say that, yes, we did in fact get 60 heads (Jeter did in fact play well last year), even though we know that the true heads percentage of our coin is around 50% (Jeter’s true talent at SS is very likely below-average). UZR does not work that way. Why is that?[/FONT][FONT=Microsoft Sans Serif]That is because it is not measuring something that is categorized, like a coin flip which either comes up heads or tails, or BA, whereby a player either gets a hit or he doesn’t, or even simple Zone Rating, where a fielder either fields a ball within his zone or he doesn’t.
[/FONT]