If you want to go the Scrum way you seriously need to filter in the hiring process for people who can believe in it. People who don't believe in it will be hard

If you want to go the Scrum way you seriously need to filter in the hiring process for people who can believe in it. People who don't believe in it will be hard to convince. E.g., for them the Retrospective is not a chance to optimize the process, in their eyes it's another meeting that they couldn't avoid and the meeting itself is a burden in their eyes.