Dick,
Ultimately change that you are referring to comes to us from the Minister and Management. If it comes, we do it! Plain and simple. We might dissent but we cannot stop it! What we do as professional ATC's is do everything we can to make it work and protect our own bacon at the same time!
Controllers have been subject to so much change that they are genuinely becoming fatigued. That in itself would not limit such a change going ahead but sheer lack of numbers and ability to develop and execute the training would!
It is simply too late in the game to do what you are suggesting. If negotiations for the ATC EBA continues to be drawn out more will give up and leave.
Then we will really be in a pickle!