The crisis in the NHS is overwhelming this week. It has reminded me of conversations I had with my late father on how to manage within the state sector. I think they're worth sharing.

My father worked for the nationalised electricity industry from the late 1940s to late 1980s. He spent much of that time as a fairly senior engineer. He was committed to what he did. He believed electricity supply was a human right. And he sought to delver it.

He left the industry and retired when he realised that privatisation challenged what the believed in. The priority was no longer supply. It was, instead, profit. He had a clear example of the difference this made. It was about emergency management.

In his day the state electricity boards ensured that they had all the capacity they needed to manage emergencies to keep supply going as well as possible, come what may. It meant there was excess capacity. But it wasn't wasted - maintenance and training was done instead.

Privatisation saw that excess as waste, and it went. It was assumed contracts could buy in support when needed. My father believed that was dangerous - because when demand was strongest the most inexperienced people would be put to work on the job.