Only one of which, i believe, has ever thrown as much as 150 innings in any season, minors or majors (Gray).
Let's stop pretending this is incredibly bad luck. This is the pitching staff the FO designed. You can't, for example, put Bailey Ober in your rotation and think he's going to last the season. He's never done that, and they don't ask that from pitchers in the minors any more, so what to they expect?