Core Four Insight: Three-time champ Jeremy Affeldt on keys to his success, working with SF relievers and why Buster Posey is a top exec

Former San Francisco left-hander Jeremy Affeldt joins FP Santangelo at the Giants' fantasy camp in Arizona to break down the current bullpen, explain what made him such an effective postseason performer and what working with Buster Posey was like - and how Posey's skills translate to the front office. 

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