ALSO, the Godfather III should have talked more about the loss of the great and loyal Consiglieri Tom Hagen. Having his son become a priest was a good choice, but by doing that they should have had a back up role of Consiglieri. But then again by this time Michael lossed so many and wanted to get out he justed had George Hamilton play his lawyer. [I believe other than Vincent Mancini (who had a "temper like his father"), Al Neri is Michael's right hand and should have been Consiglieri]
"Ugh -- just when I thought I was out, they pull me back in!" Michael in the Godfather III

"Well you just do what I tell you to do! Goddamn it! If I had a wartime consiglieri -- a
Sicilian -- I wouldn't be in this shape! Pop had Genco -- look what I got." - Sonny Corleone