Before he became the NFC offensive player of the month, back when he was a better story than player, many Vikings fans justified their infatuation with Case Keenum by comparing him to Trent Dilfer.
That's the wrong argument based on the wrong example. Want to believe in Keenum's ability to win a championship? Spin the dial on your time machine back another decade. The 1990 New York Giants, not the 2000 Baltimore Ravens, are the team the Vikings could and should emulate.
Dilfer, the Ravens' quarterback when they won the Super Bowl in 2001, has become the patron saint of misguided comparisons. Because Dilfer was able to act as a service dog for a team with a historically good defense, power running game and excellent special teams, football fans have argued ever since that bad quarterbacks can win championships.
What Dilfer proved is that a bad quarterback wins a Super Bowl once every 51 years or so.
What is far more likely than another Dilfer winning a title is a good-but-uncelebrated quarterback winning one. Former Viking Brad Johnson took four different teams, and three different franchises, to the playoffs, and won a Super Bowl with Tampa Bay in 2002. But he's not the ideal parallel to Keenum, because Johnson was an established, quality starter.
The ideal parallel for the ideal scenario regarding the Keenum-led Vikings belongs to the mentor of Vikings coach Mike Zimmer, Bill Parcells.
In 1990, Parcells already had won a Super Bowl and taken four teams to the playoffs. During the '90 season, Parcells was putting on one of his most impressive coaching displays. The Giants were 11-2 and playing the Buffalo Bills at Giants Stadium when star quarterback Phil Simms, the hero of Super Bowl XXI, suffered a broken foot.
What happened after that injury established Parcells as one of the greatest coaches in recent NFL history.