It's a .500 team. I'm not quite ready to get out the pitchforks yet but it is fairly clear playoffs are 50/50 at this point and the over under on wins is probably like 86 instead of 92.
At most a manager might make a 2 game difference tactically over the course of a season. Yea, you want a good one but having a bad tactical manager is something good clubs overcome all the time including uh, the 2021 White Sox.