NHS spending has increased vastly over the past couple of years. £34 billion according to this report. Couldn't some of it have been used to become more prepared for the possible next wave? Especially if, as you correctly point out, that bringing trained staff from abroad is harder.
I would be interested to see by how much doctor and nurse training has increased since Brexit and coronavirus started. It ought to have increased in vast numbers. Has it been?
https://www.gov.uk/government/news/...or-nhs-covid-19-response-over-next-six-months
Who delivers all this training? Where? What cover do medical teams have while the training is being undertaken?
Of course (recruitment and) training is a key factor in improving our NHS, but it's not as simplisitc as bunging £'s at it imo