In theory you can train the not-IC nurses to become one and replace the not-IC nurse with a fresh starter so you don't need to add it all together. Assumes training capacity as you say and that not-IC nurses want to work in IC, which I assume lots don't for loads of reasons.
2 years in and they are putting up tents in car parks with not enough staff to work in them.
i wonder how long it takes to design/build/fit-out prefab facilities and train a nurse up to IC level?
we have 350 million a week to spend on this.
Don’t we?....