The HE city Haithabu is supposed to keep production high and doesn't want to hire specialists, right? Pangaea mentioned that. Also note that Haithabu currently has 86/200 great person points for an engineer from the Pyramids. I guess we don't want to pollute this pool with a scientist (if we are interested in an engineer at all during the game and if we have a chance at all to get an engineer born when we create lot of other GPs before).