From the Document: "Once new cases fall substantially, the UK could consider easing…  Schools could open first: Children are at very low risk, and economic and education costs of school closure are high.  Age segmentation: Younger people are at much lower risk, so could be allowed to return to work sooner.  Sector segmentation: Some workplaces pose less risk and could return before others.  Geographic segmentation: Caseload and NHS [National Health Service] capacity vary across the country. [...] [T]here's very little headroom to lift suppression measures  Analysis suggests lifting even one current measure could take R above 1, accelerating the spread."
Tony Blair Institute for Global Change
Tony Blair Institute for Global Change: https://institute.global/