Saving The Bullpen

I am thoroughly amazed at some of the things we are seeing in Arlington this summer, and while my calendar reminds me that we are merely passing the “20% of the season” pole today, it is worth noting our sample size is growing by the week.

With that in mind, the stat that has always been front and center for me is the distribution of innings between your starters (generally, guys you have invested most of your resources into between dollars and assets) and your bullpen (guys you have determined are not great candidates to be starters at this time).  Really good pitching staffs actually approach 70% work load being shouldered by the starters, which then leads to a number of good results in many categories.   The Rangers in 2008 were at about 60%.  While that 10% may not seem like much, perhaps it better explains why people like Nolan Ryan discuss “one more inning” or “one more out” from the starters.  Because that 10% is the difference between the best staffs in baseball and the worst.

This morning, the Rangers starting rotation work load percentage stands at 68.5%.  Phenomenal on so many levels for this staff to be able to shoulder that much work.  Scott Feldman last night kept the beat going, and the bullpen remains rested and ready (Francisco news pending, of course).  Their quality will be tested as the summer goes on, but the fact that there are things this far into the season that we are not sure about regarding the bullpen speaks to the improvements.  In past summers in recent memory, we knew way TOO much about the Rangers’ bullpen by now.

The following table demonstrates the performance of the starters compared with a 5 year sample from 2004-2008; Pay particular attention to Innings/Start to show that the starters are routinely completing 6+ innings. Also, the ML and AL Ranks are ranks on workload. In the last 5 years, the highest the Rangers starters have ranked in MLB is 27th! It is early, but…

Year Games Innings Inn/Start MLB Rank AL Rank
2009 32 194.2 6.06 9th 5th
2008 162 869.1 5.36 Last Last
2007 162 838 5.17 Last Last
2006 162 897.1 5.53 27th 13th
2005 162 896 5.53 29th 13th
2004 162 901 5.56 29th 13th

Table Tutorial

According to my calculator, the Rangers’ starting pitchers are pacing to pitch 982 innings in 2009. You can see that blows away anything on the chart.

Now, let’s look from the other direction. The bullpen’s use so far. Keep in mind here, you DO NOT want to have a good ranking amongst your peers. #1 is bad. #30 is good. Check it out:

Year Games Innings Inn/Game MLB Rank AL Rank
2009 32 89.2 2.8 28th 13th
2008 162 572.2 3.53 1st 1st
2007 162 592 3.65 1st 1st
2006 162 534 3.29 7th 2nd
2005 162 544 3.36 2nd 2nd
2004 162 538.2 3.33 6th 4th

Table Tutorial

And now, for your final eye-catching graphic, here is the all-important distribution of workload percentage chart. This is where you see how close you come to comparing with the league leaders and the magical 70% number:

Year Starters % Bullpen %
2009 68.4% 31.6%
2008 60.2% 39.8%
2007 58.6% 41.4%
2006 62.7% 37.3%
2005 62.2% 37.8%
2004 62.6% 37.4%

Table Tutorial

There it is obvious for all to see. I cannot swear specifically what Mike Maddux, Nolan Ryan, Ron Washington, and any other management and staff might be doing. I also cannot swear that a quicker tempo is really that effective. There are many things I do not understand about pitching and especially pitching in Arlington.

But whatever it is they are doing to produce these early results - KEEP IT UP.

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14 Comments to “Saving The Bullpen”
  • Rangers Plan Working : baseballmusings.com

    [...] Strum examines the change in workload between the starting staff and the bullpen happening in Texas: With that in mind, the stat that has always been front and center for me is the distribution of [...]

  • Dr. Pepper presents Batface McGee

    Great analysis, Sports Sturm. This thing has got my baseball pants very tight.

  • Patrick A.

    Good stuff, I just hope these splits don’t move closer to the historicals as the temperatures heat up in Arlington.

  • Rangers Plan Working

    [...] Strum examines the change in workload between the starting staff and the bullpen happening in Texas: With that in mind, the stat that has always been front and center for me is the distribution of [...]

  • horsedooty

    this is not intended at being a slam in any way at all, but there were people that blog here and other places that absolutely hated the fact that Nolan Ryan was asking the staff to pitch one more inning and to get into better shape BEFORE spring training. Looks to me like, so far, Nolan was right. I am tempted to use that Apples comment Strum used a few days ago but I will just say, this feels like the real deal.

    doots

  • horsedooty

    sorry for misspelling your name Bob. Purely a typo.

  • becca

    i wish my baseball brain worked liked yours. baseball can be so pretty in charts and graphs.

  • Don in Austin

    @Patrick A.:
    I think heat is just another excuse for historically crappy pitching. Perhaps if Sturm’s tables were split into monthly data, the August pitching doldrums could be verified. August heat should be home field advantage for the Rangers. I’d put a thermometer in the visitors dugout that was calibrated to be 5 degrees high.

  • Rodney

    Really nice work, Sturminator!

    Keep it up.

  • Eric

    fascinating info, this is great stuff

  • Matt

    Pretty impressive stuff, for sure.

  • David C

    Good work. Very interesting numbers. Heck, almost “Norm like”.

    Now, can you break that down between day and night games, at home and on the road.

  • Juboon

    Thanks, Sports Sturm! (and lol @Don — guerilla tactics! I like it!!)

  • JT in Delaware

    Can you give us more analysis on what Mike IS doing differently as a pitching coach compared to others?