Motown used a similar method where songwriting teams had to deliver x number of ideas per week and then the best ideas were pulled out for demos. The best demos were produced.
Late night comedy shows also. Many of the comedy writers interviewed on JR Havlan's excellent podcast "Writers' Bloc" [0] recount how writers or teams of writers will be given assignments - e.g. "Write 10 jokes about Trump's last speech" - then they'll pick a few, refine them and go with the best one.
[0]http://writersblocpodcast.com/