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Up until the last few years I could easily have been a better baseball manager than anyone who had ever managed. Too much mathematical stupidity going on.
David can you expand on this thought? Please define the "mathematical stupidity" that exists in MLB.
a couple to get you started:
1) using your best relief pitcher when up by 3 runs in the 9th inning
2) having a leadoff man with "speed" and an obp barely above .300 (see juan pierre)
3)sacrifice bunting with a guy on first and no outs in the early innings of a game.
4)intentional walking
5)changing the order of your lineup when a player is slumping (a-rod batting 7th for example)
there are many, many others with simple mathematical explanations.
1, 2 and 3 are good examples of baseball stupidity. I don't think 4 and 5 are. off the top of my head i'd say that managers, on average, IBB approximately as much as they should.
if you think hitting slumps don't exist - that is - that they are just random clusters of "failures" like running cold in LHE, you're wrong and i would guess that you never played baseball.
my effective batting average (or OBP or RC/27 or whatever indicator of ability you want to use) is not constant. it changes all the time due to things like injuries, confidence, the weather, fatigue, the last time i got laid, what my brother said to me on the phone last night, my last meal etc...in addition to the obvious things like park, pitching, fielding, platoon advantage etc that you would account for anyway.
if you know you're swinging the bat worse than your teammmates at the moment, why should you maintain your spot in the order?
here's some more baseball stupidity:
6. not using your best relief pitcher when the game is tied in the 8th or bottom of the 9th
7. not adjusting your batting order when a player is out with an injury or just resting, (batting his replacement in his spot regardless) because "everyone is used to their spot"
8. signing 32 yr old veterans to huge multi-year deals, especially, because they "earned it"
9. overvaluing stats like RBI, HR milestones (ability to hit 30 rather than 26) and batting average.
10. undervaluing the negative impact of making an out.
Being a Twins fan, this stuff is constant. Ron Gardenhire and Terry Ryan are two of the worst logical thinkers I can think of. Yet they both have skills that make them good at their jobs overall. Namely, Ryan is phenomenal at finding, obtaining and developing young talent, and Gardenhire is great at getting his players to play well together. I'm pretty sure that a perfect logician who was even average at the things they excell at could not be better than either at their respective jobs.