The posters saying PPE couldn't be stockpiled. You do realise that isn't what anyone asked for?
But just in case you didn't, let me explain.
In every big organisation, in every charity that works overseas, in every multi-national company and in every government, you have a person, team or department who is responsible for emergency planning. It is their job to prepare for every eventuality , to risk assess to the nth degree and to have steps that swing into action as soon as that particular risk takes place. If there's a flood, an earthquake, a complete power outage, etc, there will be a risk assessment in place.
Ironically the original UK pandemic planning has been copied worldwide but our pandemic planning was based on a flu pandemic (which coronavirus isn't) and despite having pandemic planning, the UK Government didn't take the steps it outlined or adapt them to the details of coronavirus. Other countries adapted our pandemic planning model during SARS, adapted it again for the coronavirus and crucially actually implemented it.
The model would have included ordering PPE at the earliest opportunity, commandeering any produced in the UK and incentivising UK producers and manufacturers to move to producing PPE and increasing production.
This isn't a situation where you need a magic ball. It isn't just 'luck' that other countries did better. The UK government has shown systemic failure of leadership, decision making and action.