The advice I've been given by people similar to what you are describing is to ensure you have at least 80 hours of help per week from multiple nannies, au pairs

The advice I've been given by people similar to what you are describing is to ensure you have at least 80 hours of help per week from multiple nannies, au pairs, or family. Then it is a matter of how much of your time you want to carve off for the kids vs must carve off. I haven't tried this, but I'd consider something like an au pair if I had a larger home. I used to work 100+ hours per week, and that got significantly reduced after having a kid. I have been mostly embracing fatherhood since I imagine after age 10 their interest in me will be negligible.