Did anybody catch that part about "never had a call back"? That's the real red flag right there... means he's not sticking around long enough to see the problems. These guys hop from one job to the next, probably using different business names every few years so angry homeowners can't track em down. It's not just about cutting corners on the pour itself, it's about building something with zero intention of standing behind it. And the homeowners who hire these cheap crews are the ones left holding the bag when the driveway turns into a cracked mess six months later. That foreman knows exactly what he's doing... he's betting on being long gone before the concrete even finishes curing.