the Plan was for Bub to teach the zombies
people have noted it would not be possible for the survivors to teach all the zombie's it simply would be impractical. The idea would be Bub would open a Zombie school of etiquette where thing's such as table manner's, personal hygiene, the use of deodorant and a strict vegan diet would be taught.
If successful franchise deals would be worked out and the idea exported to those French zombie's.