Scrum presumes it is effective to give all teams a simple preset, immutable framework that each team must follow until they figure out how to manifest it.
Scrum is designed for and requires cross-functional teams doing work that is plannable. If these conditions aren’t met it is presumed that manifesting Scrum’s rigid framework will achieve Agile in all situations if people are motivated.
An underlying believe is that teams can’t initially understand what they are supposed to do so must be given a predefined set of rules that must be implemented without change until the team understands what’s happening.
While this approach works when cross-functional teams can/should be created & work can be planned, it can causes resistance & abandonment of misunderstood practices when teams have challenges adopting the framework or attached to their roles.
Alternative
Have expert have 2 hr discussion w/ team&their management to see what alternative or additional practices would be useful. Use these to provide a set starting point and provide teams a guide on how to improve/change practices when they encounter challenges. While coaching still advisable, significantly less will be needed.
I invite people to discuss these alternatives.