This is a really good summary of how it tends to play out in the real world.
In particular it is the readiness aspect. When time has come to actually think like a business, and be less of a passionate founder of your own little baby.
Lastly, on the last point, I'd offer a slightly different pov in that these people will drive out cost that you might have overlooked, or have some sort of personal opinion on. These people will be ruthless on empty costs and you need to be okay with that.
In particular it is the readiness aspect. When time has come to actually think like a business, and be less of a passionate founder of your own little baby.
Lastly, on the last point, I'd offer a slightly different pov in that these people will drive out cost that you might have overlooked, or have some sort of personal opinion on. These people will be ruthless on empty costs and you need to be okay with that.