Karl,
Please address your vision for implementation.
Start from a big-picture point of view, where you explain a phase-in or "flip a switch" roll out, a timeline, impact on various groups, the ramp up (who is most likely to jump on board quickly/how we transition from new and old Plans, and so on. Assume the transition/implementation is a choice and not a rescue from a collapse.
Even if interested folks fully understand your Plan, the next concern is likely implementation - which becomes an obstacle without some additional clarity on navigating the path.
If you can explain HOW we get from where we are now to where we would be with your Plan - then you will have crossed into a realm where NO ONE has gone. This alone might be a key to how your Plan is received.
It's not enough to explain what happens if we don't have the plan.