A team can't change faster than its most cautious members. So don't change it, but join progressives 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 ...
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