in the Nassau situation, maneuvering in port, a pilot is always on board but a pilot in this situation is always an 'advisor' to the Master., who remains responsible for safe navigation. The law requires this advisor be there (and paid for) but the interaction between this advisor and the Master can take on many forms. I've seen pilots who never opened their mouth except to say thank you for the fee ($$) and a cup of coffee. And I've seen times when the Master stood in the back of the bridge and allowed the pilot to give all commands for rudder and engines .... I've seen times when no one on the bridge spoke the language of the pilot ..... it is a 'curious' dynamic to the job of ship's master. (b4 someone is compelled to mention, this relationship of advisor takes on a different flavor in the Panama Canal where the pilot DOES assume navigational responsibility.)
IME on cruise ships in Nassau: when the ship is a weekly (or even twice weekly) visitor the pilot generally stands aside and allows the Master or his designate 'drive' once the parking place and bow in or bow out has been agreed to.