The difficulty with the nhs is that progress is slow moving, and doesn't often fit with political time frames.
Often the years of underfunding takes many years to become a problem, and the solutions take many years to implement. I imagine it like planting a tree, it will take many years for the poor care or fantastic care to really show and In that time government and policy changes.
My team has been underfunded for sometime and now the cracks are really beginning to show.
For example the nhs building we were in was sold off, the money for it has long gone so we rent. Except we've now been kicked out of the building so we are moving into another base which is massively underspaced for our team and are having to cancel client apps because of lack of places to see them, and the increase in home visits equals a decrease in efficiency and more blocked patient flow.
Many years ago mental health nurses were given a specific pension deal that it beginning to take effect so they are leaving in the droves. When they withdrew funding for people to become nurses, it took 3 years before it impacted the numbers graduating.
These are problems years in the making but would rear it's head whoever was in charge. It will be many years until the impact of chronic under funding becomes fully known
Governments want fast progress so they can say they have slashed a waiting list in a year, rather than they have invested in the future
For example my team until recently got given a fairly big recruiting budget, but it simply wasn't a money problem. There were not enough mental health nurses locally, to fix that it takes a whole system redesign, finding a way to encourage people into the profession, waiting years for them to qualify, then for them to become experienced enough to work in my team.
With every government change, new policies come in, old plans abandoned, priorities changed.
You can really clearly the impact on things like hospital building. We have been planning on building a hospital for several years but often their are changes in political will and funding. Plans that are made (and money spent on empty land) are abandoned, then restarted when we have funding.
If we had built that hospital at the start then it would be in operation now, but it's not a vote winner to say that waiting lists will be reduced in 5 years when a hospital has been built and become functional.