Assertion: pitcher's team | /r/CapableOf | improve its chance
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text: The most detailed study available (by Daniels, Andrasik and Hooley - see under Further Reading below) confirms that there is some improvement, but that it is extremely small: a team using its relievers in typical 2010s fashion has improved its chance of holding on to a 1-to-3 run lead by around 1% compared to the pre-1945 era when closers were rarely used.