From that time on, Jesus began to show his disciples that he must go to Jerusalem and suffer greatly from the elders, the chief priests, and the scribes, and be killed and on the third day be raised. (Mt. 16:21).
Note that once Jesus has picked a successor, only then does he set his mind on Jerusalem to die. In other words, he couldn’t prepare to die until he’d picked an adequate successor.
It should also be noted that the name given to the “prime minister”, the man who rules the kingdom while the king is away, is translated from Hebrew as “Father”. I’m not sure, but I think the word was “Asberath”, but I’ll check.
NotWorthy