Interesting stuff. After Hader lost an arbitration hearing to Milwaukee in 2019 and saw that the system only cared about saves (and, of course, that MLB teams don't really care about their relievers' long-term health) he and his agent made their own ground rules, though they weren't binding. I'm still surprised they were able to get the contract they did for him though.
Berry proposed three new rules for Hader to present to the front office: He would not pitch more than two days in a row; he would not pitch more than three outs; he would pitch only in a save situation or when the score was tied.
AFTER THAT MEETING, Hader's usage shifted dramatically. In the COVID-shortened 2020 season, Hader got four (or more) outs in only one of his 21 appearances, and he never pitched more than two consecutive days. During the 2021 season, Hader pitched on three consecutive days April 29-May 1, and then again June 11-13 and Sept. 24-26. He never had an appearance of more than three outs. Early in 2022, Hader got saves on both ends of a doubleheader.
Midway through the 2022 season, Hader was traded to the Padres, who were in the midst of their best season in decades. During trade negotiations, he and Berry asked that his usage guidelines remain intact. In a season and a half in San Diego, Hader recorded 40 saves; he made his fifth All-Star Game and closed five games in the 2022 playoffs without giving up a run. In all, since 2021, the lefty had racked up 103 saves and three more All-Star appearances, averaging 14.6 strikeouts per nine innings.
