Russell: Anti-organizational teachings,celebrating birthdays,Christmas and holiday observance, military involvement tolerated, not draing blood from food, considering self to be the "Faithful and Discreet Slave", selling miracle wheat,dabbling in the occult, and signing his own books.
Rutherford: Signing his own books, beer parties at bethel,making many enemies within and without the organization.
Knorr: Having private opinions on 1975 and the time of the end counter to what was printed in the Watchtower.
Fred Franz: He was too smart to be disfellowedshipped. Besides ,he practically invented disfellowshipping.