Deming would say that you don’t get better by everybody trying harder. Some ideas programmes are no more than that.
The idea is that you ask people to improve things that they think influence performance.

People are brought together in teams; they generate ideas and act. Sometimes you get results – often there are obvious things to put right (‘nobody ever asked’). But are the results sustained – is the change based in knowledge?

How can people continually improve without knowledge? Or, as Deming would put it: you will never improve by everybody doing their best; “We would be better off if some of those who just did their best stayed home!”.