On Nov. 1, 2009 -- not so long ago in geologic time or even measured by the growth of Jared Allen's mullet -- the Vikings whipped the Packers 38-26 in Green Bay.
It was a moment of triumph for Brett Favre and the organization that lured him to Minnesota, as he returned to Lambeau Field for the first time and triumphed over his replacement and the people who chose Aaron Rodgers' promise over Favre's legendary stature.
That day, the Vikings beat the Packers for the third consecutive time, then finished 12-4 and came within one Favre pass of advancing to the Super Bowl. At that time, NFL experts thought the Vikings, with their deep cast of dynamic veterans, might have the best overall roster in the league.
Less than two years later, as the Packers visit the Metrodome on Sunday, Green Bay is the class of the NFL, and the Vikings are spending a second consecutive season embarrassing themselves. The Packers have won 12 in a row, tying a franchise record, and one of those victories came in the Super Bowl. The Vikings have lost 16 of their past 23 and eight of their past 10.
How did this rivalry change so quickly from a healthy competition to a mismatch?
The lessons learned from this divergent rivalry are as simplistic as grade-school admonitions, and universal enough to be studied by CEOs.
The Vikings splurged; the Packers delayed gratification. The Vikings tried to win it all in 2009; the Packers built what could become a dynasty. The Vikings invested in a veteran quarterback edging toward retirement, in Favre; the Packers drafted and developed the best young quarterback in the NFL, in Rodgers.
The Vikings spent draft picks and copious cash on veteran defensive end Jared Allen; the Packers drafted and developed their star pass rusher, Clay Matthews. The Packers built a deep and talented cast of homegrown receivers; the Vikings invested in Bernard Berrian.