I’ve been working at my hospital for 2 years already.
I first applied to several wards in the same, huge hospital, most managers didn’t bother to answer me, one agreed an interview with me, only to send me the second in charge, who told me about several units were I could work at, but he offered me no position.
There was one manager however who made it easy for me to shadow several nurses in several units. She was my first manager.
Long story short, managers started moving elsewhere, new manager comes in, I don’t trust this new manager, applied to be transferred, yesterday my transfer was approved to another ward with a manager who seems to be nice, but everyone is nice 'till they stop being such.
And I wonder if I should, sometime in the future, apply to those wards managed by the same people that 2 years ago rejected and outright ignored me, because it’s always good to have a plan b on the back burner and I’m running out of managers within my hospital I haven’t interviewed with.
On one side: no, applying again is a waste of time as they made pretty clear what they think of you and people don’t change. You are effectively blacklisted.
On the other side… I don’t know.
…at this point I wondered, spontaneously, if you have it in your work contract that the manager must be nice.
Regarding your specific question:
I can give a company a second chance. But never a manager where I have worked and quit. I have actually avoided applying, or canceled an application, at companies where I knew that a former manager was now.