How about they stop paying billions each year to agency workers and their bosses? If they just paid a good wage that would be enough to recruit and retain Nurses and Doctors everything would improve. Staff will stay and feel valued, less sickness, better patient outcomes (eg cancelled ops due to staffing) then they can stop the dependency on agency staff and afford to make the NHS a good place to work.
Also there is a whole raft of non clinical 8a's in my trust who are doing roles that aren't needed and could be condensed.