Before the season began, I felt that Russell's resume was borderline. The standards for QB's entrance into the Hall seem to be increasing. I don't think you're going to see anymore Kenny Stablers getting a gold jacket. IMO Russell needs either a league MVP or Super Bowl MVP, or at least another Lombardi, to be assured of an induction.
Right now, Russell looks a lot like Eli Manning, who has two SB MVP's and 4 Pro Bowl appearances but ended his career on a real downer as his last 3 teams finished 3-13, 5-11, and 4-12. Compare that to Russell's current resume of no MVP's, one Lombardi, but he has 8 Pro Bowl appearances. Does having twice the Pro Bowl appearances trump two SB MVP's? IMO for a quarterback, it's basically a push.
More than any other position, greatness for quarterbacks is measured by team success, and the ultimate team success is the Lombardi.