An engineer that does nothing but foundations can still be a damn good geotechnical engineer.
A foundation that isn't useful to build atop is just a shitty foundation. Everyone is taking it for granted that building a good foundation is impossible if you haven't built a shitty foundation for the same building first, but that's not the only way to do things.
A foundation that isn't useful to build atop is just a shitty foundation. Everyone is taking it for granted that building a good foundation is impossible if you haven't built a shitty foundation for the same building first, but that's not the only way to do things.