Re: [新聞] Yankees name Larry Rothschild pitchi …
http://riveraveblues.com/2010/11/larry-rothschilds-affect-on-pitchers-38752/
Larry Rothschild’s effect on pitchers
By Mike Axisa
When the Yankees hired Larry Rothschild away from the Cubs to be their new
pitching coach yesterday, Ben noted that his staffs tend to boast high
strikeout rates. Earlier this summer a poster on the FanGraphs Community blog
looked at exactly that, and found out that pitchers did in fact improve their
strikeout rates with Rothschild, close to 2.5% as a group. But what about
walks? Another Cubs Blog tackled that a few days later and found that yep,
pitchers improved their unintentional walk rate with Rothschild as well. More
strikeouts and fewer walks is a great recipe for success.
The Yanks as a group struck out 0.62 fewer batters and walked 0.19 more (per
nine innings pitched) in 2010 than in 2009, with CC Sabathia‘s rates taking
a hit in particular. With any luck, Rothschild will help get the staff back
into strikeout mode, which would be a tremendous help.
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.44.120.7
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台泥怪怪的 換一個
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恩..他這邊取的樣本是02年他上任以來小熊簽約或交易來的投手，就是從外面弄來的。
然後根據 Sabremetric Library, K/PA becomes reliable after 150 batters
faced (BB/PA becomes reliable at 550 PA)這兩條再把沒達到標準的去掉，
最後再扣掉 Greg Maddux (Greg Maddux makes up such a large portion of the before
Rothschild group and Maddux's control wasn't as spectacular as we remember
early in his career)，剩下的投手K/BF從18.18%上升為20.35%，BB/BF從
9.55%下降成8.22%。參考看看，畢竟指的不是全部的投手@@
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※ 編輯: unicotexalex 來自: 114.44.120.7 (11/21 20:01)
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