[6] In contrast to his father, Mugs brought in external coaches and executives to help manage the Bears' football and business operations.

[7] Mugs also hired Jim Parmer as a scout, who worked with Finks to acquire many of the players on the 1985 Chicago Bears team that won Super Bowl XX.

[11] Therese divorced Mugs in 1975 and was awarded custody of their children, the family home, $50,000, and four season tickets to Chicago Bears games.

[2][12] Mugs also served on the board of directors for the Park National Bank, Chicago Association of Retarded Children, United Cerebral Palsy, and was a trustee of the Pop Warner Football League.

Chicago Tribune writer Don Pierson credits Mugs for developing the NFL's parity-plan scheduling formula, which saw rotating intra-division play based on team's finish from the prior season.

[14] Bears' executive Jerry Vainisi and NFL Hall of Famer Dan Hampton both reported that George Sr. never wanted the McCaskeys to control the team.

[16] A legal battle subsequently brewed between Mugs' heirs and the Halas-McCaskey family over their inheritance, life insurance payout, and ownership stake.

[18][19] A Cook County judge determined that Virginia did not damage Christine and Stephen's stocks, but reprimanded her for not disclosing plans of the reorganization to them sooner.

The forensic pathologist conducting the autopsy noted that many of Mugs' internal organs, including his heart, lungs, and spinal cord, had been replaced with sawdust.

[2] The three filed a lawsuit seeking $50-$100 million in damages from multiple parties, including the Chicago Police, Cook County Medical Examiner's office, the Bears, the NFL, and Pete Rozelle.

[12][24] A judge ruled against the Halas family's request to obtain written statements from 15 individuals who were involved in Mugs' autopsy, effectively ending the lawsuit.