A team can't change faster than its most cautious members. So we don't change existing teams or programs, but join progressive individuals into an uncompromised new capability.
The first transatlantic cable began with a steel thread. That fed a machine wrapping threads around it to form a cable. Another wrapping cables around that, cables of cables, and so on.
So as your new capability matures, split it and have the next most progressive join. At every split, change recipients become change agents ...
Global Community, Conference Organizers
Global Community, Formerly DSDM
Global Community, QA Evangelists
Australasia's Premier Agile Business Consultancy
France's foremost Business Agile Consultancy
Founders of the Swiss Agile Association