The NHS has a finite pot of money with which to provide its services. That means if it prioritises one service, it is likely to be at the detriment of another.
I don't envy those that have to make these incredibly difficult decisions - there is never an easy answer.
Patients will face longer waits for operations such as knee and hip replacements in a "trade-off" for improved care in other areas, NHS England boss Simon Stevens says. He said growing pressures meant he could no longer guarantee treatment in the 18-week target time. GPs will also have to cut the number of patients they refer to hospital and use alternatives such as physio instead. But Mr Stevens said in return there would be quicker cancer and A&E care.