How do you judge the goodness or badness, the effectiveness or non-effectiveness of a Don? We seem to be stuck mixing Michael's business and family. To be sure, they are entertwined probably in a way that the business and family of most,if not all, Dons are not.
In the Godfather "the business" is also "the family business." So this is a hair you cannot split.
"Io sono stanco, sono imbigliato, and I wan't everyone here to know, there ain't gonna be no trouble from me..Don Corleone..Cicc' a port!"
