FanPost

Overuse Effect

This diaray contains no Jason Bay/Ipecac Content

Cool article on Hardball Times today about bullpen pitcher use. It presents a pretty rigorous study of high-use/low-use pitchers and their subsequent performance in the next season.

Link: http://www.hardballtimes.com/main/article/does-reliever-over-use-lead-to-poor-subsequent-performance /

Conclusion:

There was no marked difference between high-use bullpen relievers and low-use bullpen relievers in subsequent years; however:

Pitchers that pitched a large number of innings at a low ERA suffered a regression to league average (almost 0.5 run)

Pitchers that pitched a low number of innings and sucked, still sucked in subsequent years.

Nothing earth shattering, but interesting enough given the incredible performance of CLE's bullpen last year.

Takeaways:
Raffy-B will probably suffer the mean regression.
JoBo can't possibly post that ERA again.

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