When should new approaches be anchored in an organization's culture?

SAFe follows Kotter's 8-step change model. The workbook notes:

"Culture change comes last, not first. It is the outcome, not the precondition, of a successful transformation. Culture changes only after you have successfully demonstrated that the new way is superior to the old."

This confirms thatculture change follows behavioral change.

Source:SAFe Workbook, Section on Leading Change