The event one seems perfectly fine with a dictionary or even a class that wraps your events and pairs with an event object subscribers can attach to with a singleton attribute.

Rather than picking at the examples like other commenters, I very much agree with the diagnosis, which is that you do not want to pick someone who will protect your baby. That is a babysitter. You want someone who will become a parent of their own.

Ownership is one of the leadership principles. That doesn't just mean owing the things that exist, it means owning the conceptual direction of the company.