Can the carpenters get to the "welcome mat"? I've stopped using multiple carpenters all together and try to keep the 'locked' to the building they work on, by disconnecting them from the rest of the city.
So you might want to destroy all of them and rebuild just one...
As for the pullers, don't work, they should spread out and all be there once the scaffolding is in place.
A
ngel
J
ahakemhotep
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Homage to thee, Osiris, Lord of Eternity, King of the Gods, whose names are manifold, whose forms are holy, thou being of hidden form in the temples, whose Ka is holy."
-- Book of the Dead (1240 BC)