It's been what, 15 years? Since a Sox manager was fired mid-season? Williams, I think. There was no one after that, right? Little, Francona, Valentine, and Farrell are the only guys who came afterwards?
I really don't think the Sox would fire a manager mid-season. If they didn't fire him in 2014 or 2015, they won't do it now, they'll wait until the end of this season.