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February 17, 2009 Team Health ReportsSan Francisco Giants
Head Trainer: Dave Groeschner Trend: Negative. The number of player days lost represents a three-year high for the team, but most of them came from injuries to older players like Dave Roberts and Omar Vizquel, the strange elbow injury that sidelined Merkin Valdez for most of the year, and Noah Lowry missing the season. It was the the team's first season P.B. (Post Bonds), so it will take a few more years to accurately assess the staff and find out what a Bonds-free training room can do. For the most part, they've done an excellent job keeping aging players on the field, including Bonds in 2007. The late DL stint for Jonathan Sanchez due to a strained rotator cuff is a bit of a concern given his heavy workload. Now that the Giants are finally getting younger, Groeschner and his staff will ultimately be judged on how healthy they can keep the organization's prized young arms. The Shape of the Season: ![]()
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Technical question about the Verducci effect: are we sure that this isn't just regression to the mean? It would seem to me that any time a pitcher gets a 30 inning increase it's because he's pitching very well, probably better than average. And so we'd expect, since we're starting with a sample extreme of performance, that our next sample of that group would regress to the mean and some of them would exhibit less extreme performance later.