No leader is perfect. Everyone has gaps in their knowledge and skills that make them better suited to different stages of a business journey.
In rapidly growing organisations, those differences can be particularly important. The skills that are needed to launch and grow a ten-person startup from your garage are often not the same needed to steer that same company once it becomes a multi-billion pound beast.
To mitigate that skills gap, many companies will surround inexperienced founder-CEOs with experienced leadership teams in order to provide guidance and professional oversight - often at a great expense. Research suggests that in most cases their advice is ignored anyway.