Two different people wrote me with a confusion based on what I posted here yesterday. Here's one of them…
I don't see how a script written for Richie Rich could be retargetted for Scooby Doo. Aren't they totally different casts of characters and settings? This seems like taking a script for Popeye the Sailor and using it for Daffy Duck.
What I thought would be clear was that in this instance, Bill Hanna would be having the Scooby Doo unit do the layout and animation for an episode of Richie Rich. That situation, by the way, might have meant that the Richie Rich unit would finish its episodes for the season earlier than planned and the artists in its unit might be laid off sooner than they'd expected.
By the way: Another result of the substitution would be that the episode of Richie Rich would be animated by folks not as familiar with the models and designs — and not hired because they'd shown they could draw in the Richie Rich style — and it would not look as good. This happened a lot at Hanna-Barbera. It probably happens at most large studios, and it's one of the reasons why the quality of animation and drawing on a show might vary from week to week. (Another, more serious problem at H-B is that Bill Hanna would send one episode of a show to a sub-contractor in Taiwan, another to Korea, another to the Philippines…)