Gaffin wasn't recruited as a pitcher. She was recruited as an outfielder and hitter. She pitched out of necessity due to injury and to attrition ... and ironically was the best pitcher on the staff for most of the last half of her career, which is when she pitched.
Same with Tarango. Wasn't recruited as a pitcher but was told she would pitch if needed and possibly get some mid-week games. But Gaffin wasn't recruited as a pitcher at all. Neither Gaffin nor Tarango were elite pitchers in high school, which is strange because Gaffin had one of the best dropballs I've ever seen.