since I am on a break from something much less interesting, here is one more:
Over the course of his career Bob Hope employed over one hundred writers to create material, including jokes, for his famous topical monologs. For example, for radio programs Hope engaged a number of writers, divided the writers into teams, and required each team to complete an entire script. He then selected the best jokes from each script and pieced them together to create the final script.
http://www.loc.gov/exhibits/bobhope/jokes.html