The Curse of Jerry Hairston, Jr./Eric Hinske:
 

Tuesday, November 13, 2012

Camden Depot: Measuring Bullpen Management: Bucking Up the Bullpen

A Hardball Times article suggested using WPA - WPA/LI as a measure of bullpen performance that would be useful in assessing bullpen management.  WPA is the acronym for Wins Probability Added.  This is calculated as the difference in win expectancy before and after an event. LI is the Leverage Index.  It is a measurement of how consequential a specific scenario is based on the inning, outs, score, baserunners, and baserunner position.  By using the two statistics in concert, you arguably have a measure that gives you a context neutral wins added metric.

WPA WPA/LI WPA - WPA/LI
Bob Melvin 3.75 0.83 2.92
Bruce Bochy 2.98 0.13 2.84
Joe Giraldi 7.37 4.88 2.49
...

Joe Girardi makes the top three, which confirms my belief that he manages his bullpen about as well as anyone in baseball and has done so since he’s come to the Yankees.  I mean, the man got useful innings from Jose Veras.

 

--Posted at 1:46 pm by SG / 8 Comments | - (0)

Comments

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But it also claims Torre was good at it too.  Not quite as good as Girardi, but still “Tier 2”

I think our big complaint with Torre is the Procterization of pitchers, which wouldn’t really show up on a metric like this, as long as you notice when they blowout their arm.

But it also claims Torre was good at it too.  Not quite as good as Girardi, but still “Tier 2”

That covers mostly his time with the Dodgers, right?  Maybe he was better there?

I think our big complaint with Torre is the Procterization of pitchers

Yeah, Torre’s issue was always over-using his best relievers when his team was leading.  Even with a seven run lead.  And then burying the other guys so they never pitched.  Girardi mostly spreads the work out well.

I guess.  Relievers got tiered late in the year with Torre but the regular season metrics probably wouldn’t show something like that.

Slade Heathcott has first AFL homer today and is 2-2 and now batting .356. Swings one-handed and looks like Gardy in doing so.  Would like to see him progress in a healthy way.

[5] Heathcott actually has a history of decent power though, so his lack of HRs in the AFL has been more strange than worrisome.

Heathcott’s shoulders scare me.  Baseball players sort of need healthy shoulders.

[5-7] I think scouts project Heathcott to be a 15-20 HR type of player, with very good (maybe not elite) speed and defense.  His two issues are injuries, and strikeouts.  Both of which are not necessarily fatal problems, but need to be monitored going forward, for sure.

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