How was the "cover" over the long weekend just passed, I wonder?

I appreciate that you're approaching this from the NHS point of view, Bill ... but I may as well remind folk that other circumstances often apply elsewhere.
For instance, although NHS hospitals invariably have more kit than they know what to do with, that's certainly not the case everywhere. So just swapping over the kit (or simply grabbing another from the cupboard or store room) is not always possible.
During my Happy Days in a well-known Desert Kingdom, at least two of "my" hospitals had the biomeds working an over-lapping three-shift system, giving 24x7 cover. With "reduced cover" (usually one bloke) during the night, but sometimes more if we were behind with the work. It was great, as that night-time shift allowed us to clear a great deal of the work that invariably got interrupted during the day, as well as easier access to Theatres
etc.To my mind that level of service is what "real biomeding" should be about ... but I realise that in Blighty, such ideas are not universally welcomed.* A different mind-set, perhaps (as I have mentioned before).

But to be fair, those situations also differed from the NHS situation in that a great deal of hand-holding was "required".
Mind you, operating a shift system generally means "more blokes"; so if that's what the Management is thinking of going for, best make it clear from the onset that more resources will be involved.

*
During various forays as an Agency Tech any suggestion that I come in "after hours" has always been greeted (with one exception) with all sorts of "reasons why not" - the usual one trotted out being "lone working", or "lack of supervision" ... blah, blah, blah. Rarely (almost never) did the needs of Doing the Job (aka Clearing the Work) prevail.