By Andrew Holleran With seven Super Bowl rings and a number of National Football League passing records, the majority of the football world can agree that Tom Brady is the GOAT. Joe Montana isn’t ready to go there, though. The legendary San Francisco 49ers quarterback was asked by The Spun this week if he feels comfortable referring to Brady as the greatest of all-time. Montana isn’t ready to go there. “Well, obviously Tom has had a tremendous career. The hard part is trying to compare eras. I mean this is what, Super Bowl 56. The NFL has been around for 100 years,” Montana said. “There was a …