And the best teachers will start being more cautious, not crossing any "lines" and trying new things, not angering the superintendent by teaching hot issues, etc.
I do not believe one bad apple spoils the whole bunch. Fix the issue, don't put a bandaid on it.
But if mass firings happen just so the board can fire whomever they want, it is in a teachers best interest to stay on the administrations side, rather than just teach great.
Some of the best teachers are the ones who challenge conventional thinking and bloated process. They piss the administration off (I was lucky enough to have multiple teachers like this in HS). They could have a target on their back right now.
I do not believe one bad apple spoils the whole bunch. Fix the issue, don't put a bandaid on it.