Teams have tried to structure their future like this before (Philly, OKC).
At the end of the day, you still need a competent front office to make it work out. Making trades that give a higher likelihood of future lottery picks, trading current value for future value when you know the current value might help you win sooner, drafting the right prospect that fits into the growth of the team vs. best player available, etc....
Look at the opposite, the Clips spent the farm for Current Value(2019), and they're now boned for the next 8+ years.
Hard to call the Spurs or OKC lucky.