Not to hijack this too much but the Australian vaccine rollout has been widely panned but much of the problems come down to a choice to rely on domestically manufactured AZ vaccines.
In a different timeline if the AZ vaccine hadn’t been associated with rare blood clotting, if Pfizer/Moderna hasn’t been able to scale manufacturing as well that strategy would be looking very good.
It’s interesting to think that Canada and other nations that instead depended on international supply chains ultimately did much better though.