For those not in the know, these are two of the most highly regarded operators in the Valley (if not as well known). Sarah was thought of as the person who "ran" Square, and Kevin is thought of as one of the strongest product leaders. They'd both be in my top 3 worldwide hires I'd try to make for these roles.
Nextdoor shares don't look like they did too well under her management.
Isn't it fair to look at share price under their leadership? What other objective measures do we have of their management abilities? We take the OP's word for it that they're the best? Or is this like sports teams recycling the same 30 coaches?