Default specialists?

[Steffo]

When a city runs out of tiles to work and grows, then the new citizen turns into a specialist, for some reason the default specialist is an entertainer.

Can that be changed somewhere? I would like to have scientists instead, now I have to micromanage every city so I get scientists instead of entertainers....

 

[WickedSmurf]

I've gotten as well scientists and taxmen as entertainers. Don't what decides what the new citizen appears as.