If there is any team that needs to upgrade its starting rotation at the MLB trade deadline, it is the Boston Red Sox. While Lucas Giolito continues to rebuild his image after a rough start to the season, and Brayan Bello blossoms into an integral piece of Boston’s future, Walker Buehler does not belong on a major league roster, at least one competing for a playoff spot. Boston can no longer in good faith let Buehler toe the rubber every fifth day and must look for a replacement to bolster their rotation in time for a second-half playoff push.