This week’s question, 2002’s first, comes from Jesse Alson-Milkman: Is there any pitcher in the history of the game who has had his strikeout rate fluctuate as wildly as Mariano Rivera has? In 1996, Rivera pitched 107 2/3 innings, striking out 130 men. By 1998, he’d dropped to a low of 36 strikeouts in 61…