According to Digdoug's story, there should be a bunch of them sticking around desperate for a job (since they need it to survive.) GK has a ton of money, seems to be winning overwhelmingly, and ought to have been able to sweep up huge amounts of casters.
We do have a reason GK does not hire. Many are refusing to do buisness with GK. Some point early in Book 2 it was mentioned that K was running low on healing scrolls because no one in the MK would sell to them. Probably do to Charlie.
Member of the Giants in the Playground Forum Chapter for the Movement to Reunite Gondwana!