Although Greg Lake's input was fairly clear, many did not recognise the contribution made by Ian McDonald. In hindsight, when he and Lake departed, King Crimson were trading on the first album and could never recapture the magic. They became more like the Robert Fripp Band. It is funny how McDonald's band Foreigner were closer to Free than King Crimson. It is interesting you found there was a continuous decline after Discipline (I have only heard Discipline and Beat). Robert Fripp and Toyah Wilcox were recently on a TV game show called Mr & Mrs. It was fascinating how Toyah believed she was the musical talent in the partnership and Fripp was in the background. I suppose he has become used to massaging her ego.