In a game over the weekend between the Boston Red Sox and Detroit Tigers, Red Sox starting pitcher Cooper Criswell was pitching the game of his life. In a 0-0 tie through four innings, the Tigers had no base-runners at all. Criswell, a rare breaking-ball and control specialist who serves as Boston’s fifth starter now that those above him on the depth chart have been injured, appeared to have perfect command of his pitches, as evidenced by the large number of strikeouts he was getting, and he is not a strike-out pitcher. Criswell also threw just 52 pitches in his four innings, and that is well-below any likely fatigue level.
Nonetheless, despite being literally perfect that far, Cooper Criswell did not come out to the mound for the fifth inning. Red Sox manager Alex Cora replaced him with lefty Rich Hill, because the Tigers had three tough lefties coming up to bat (left-handed batters typically hit right-handed pitchers like Criswell better than they hit lefties like Hill).
Hill walked one of the left-handed batters, and the first right-handed batter he faced as a result hit a two-run homer. The Red Sox never caught up.
After the game, Cora had no regrets, telling the press that pulling Criswell was part of a predetermined plan. “We drew it up, they had a bunch of lefties,” Cora said.. “He gave us enough. We went to Rich in that situation. We had a big pocket of lefties. Just the righty burned us.”
There are two ethics issues here.







