This quote “You’re efficient when you do something with minimum waste. And you’re effective when you’re doing the right something.” reminds me of a Systems Thin

This quote “You’re efficient when you do something with minimum waste. And you’re effective when you’re doing the right something.” reminds me of a Systems Thinking talk Russell Ackoff gave a long time ago [1] where he talks about the difference between doing "the right thing wrong" and the "wrong thing right" and getting more efficient at doing the wrong thing obviously might not be optimal :). This is actually a concept that Peter Drucker came up with, but I've not managed to find a good link to that, I'd be interested if anyone has? The whole talk is quite interesting, but I've linked to the relevant segment: [1] https://youtu.be/OqEeIG8aPPk?t=591 https://youtu.be/OqEeIG8aPPk?t=591