Rashi notes that if the Kohen Gadol has a son to fill the position of his father then he should be appointed after him. What if another Kohen is a more worthy candidate? Who gets the position? The posuk notes “Tachtov” – in his place only afterwards the word – “Mibonov” from his sons. From here we see that the most worthy candidate is the first consideration.
Written by: Rabbi Ephraim Bryks