Arizona Diamondbacks pitchers all ears when Dave Duncan instructs

There might not be much in Dave Duncan's message this spring that Diamondbacks pitchers haven't heard before. Throw strikes. Get ground balls. Know your strengths. Attack weaknesses. But therein lies Duncan's effectiveness. There can be genius in simplicity, in attention to detail, in thorough meticulousness. Duncan's track record might speak for itself, but the Diamondbacks are listening whenever he speaks.



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