Replacing co-workers?

[CSquared2]

Is anyone aware of any way to replace co-workers?  Like, fire them and have the game populate new ones?  My fire squad of old ladies just isn't doing it for me.   

[samoht04]

If it is a Rabbit Hole and you own it you can fire Sims but if you have a Fire Squad I don't think you can, unless you force them to quit (If they are townies) or just delete them with testingcheats might do it.