It's a long read mate, but worth it if you want a detailed take on the issues around this.
It is broadly as described elsewhere; the private companies to take the easier, profitable work, and let the NHS deal with the expensive, difficult stuff.
It might get people treated faster, which is always a good thing, but it certainly doesn't make things cheaper for the NHS overall (and quite possibly, the opposite).
Under the current rules governing the outsourcing of NHS services (primarily The Public Contracts Regulations 2015), NHS commissioners are required to offer opportunities for any NHS or private provider to bid to run NHS-funded health services. Commissioners are obliged to carry out a fair and trans
chpi.org.uk