Ok i have a couple of questions, and hopefully you guy can help.

1st= How come Tom Hagen didnt succed Vito?

2nd= Why didnt the 3 oldest children fail to succed there father, but Michael was a success?

3rd= Can someone explain, why when the Corleone's tryed to become a legit company, the government dissapproved of it because the family was corrupted at the beginning, but the government lets companys that dont have a past history of organized crime set up shot, but there more corrupt than the Corleone's were.

4th= What do you think the purpose of Puzo was when he wrote the Godfather. Also why do you think he wrote it?

what i think to question 4 is its showing the connections and the ability of using someone can corrupt te world and the people around. Please giv me your thoughts. Thank you.
Chris