Astros Trivia 6-12-24: Name the four pitchers that have thrown 300+ strikeouts in a season for the Astros

Hint 1: Two of these four pitchers did it in the same season

Hint 2: The all time MLB strikeouts leader never did it in an Astros uniform

Hint 3: One of these guys did it for the Astros in back to back seasons, and then retired the very next season

Hint 4: Dodgers' manager Tommy Lasorda frequently made the umps check one of these pitchers for foreign substances

Answers: Gerrit Cole Justin Verlander>! JR Richard!< Mike Scott