I found an even better demo:
http://www.youtube.com/watch?v=TRKssCBrYxc
Honda were losing out on the SE Asian markets, because of the fragility and vulnerablility to zero care of their ohc engines. A working group from the factory went on a tour. On returning, the head of the group convened a meeting for the morning after the plane landed.
One of the engineers sat down and spent the night drawing up his idea for how a better suited engine should be built. This was fortunate for him, as it almost entirely coincided with the leader's concept.
They simply went back to basics and effectively created an upright version of the old C110/C210 engines. Pushrods, so reducing the amount of oil the head needed, and the cam down in the guts of the engine, swimming in oil. Further to that, changing worn parts is quick and easy, which is generally agreed to be better than scrapping an engine or complete bike.