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Wednesday, August 23, 2017

How Promotions and Demotions Affect Relief Performance – The Hardball Times

I am struck by the fact that all groups outperform their projections on average. I suspect this fact has more to do with the projections themselves and doesn’t mean there’s a hidden pattern here we’re not seeing. If anyone has suggestions for other projection mechanisms that would be suitable, let me know in the comments.

The conclusion here seems straightforward. I can find only the most tenuous connection between a role change for a reliever and his subsequent performance on the field. If a reliever does struggle or suddenly become lights out, look for other factors besides his recent promotion or demotion.

Jim Furtado Posted: August 23, 2017 at 10:15 AM | 0 comment(s) Login to Bookmark
  Tags: relievers, sabermetrics

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