The Importance of a Faster Vaccine Rollout

I don't think we know exactly whether 80% of the 16 plus population would have been enough for contact traces to be able to get this under control. What we know is if we'd had 80% vaccination, there is zero chance that there would have been over a thousand cases yesterday and things like that. There is no trade off on this one, which is a faster vaccine rollout would have made everything better. So what's the way forward? What should we be doing that we're not currently?