It’s an awesome skill coordinating such a thing. If there’s one thing I’ve learned from house building, foundations and slab pours wait for no one. And the consequences of having a blowout are expensive. Or not maintaining temperatures and having concrete freeze. We would be doing foundations here in -35 to not lose days on the schedule and double insulated tarps and hydraulic heat line heaters were the only thing that made it possible. I’ve had a few slab pours where we had to run frost fighters for up to 3 weeks to get the frost driven down far enough to get plumbing groundworks and in slab insulation and heat lines run before the pour. And all it takes at -35 is for your heaters to go down for a night and it sets you back a week’s worth of thawing. I can only imagine how nice it is to build in more southern climates. But every place has its challenges. Construction workers and supers do such important work.