Overall, looking at the entire database of teams from 2002-2010, there is no correlation between second-half decline in Weeks 1-3 and second-half decline in Weeks 4-17. (If you want to get technical, the correlation coefficient is .05 on offense, -.07 on defense, and .02 overall.) If we look only at the 40 most extreme teams, the correlation is slightly higher (.13). Still, most of this evidence suggests that the Vikings aren't going to have these kinds of second-half collapses all season. If they continue to play at the level they are playing at overall, they should be a .500 team the rest of the way. Unfortunately, they're starting in an 0-3 hole, but they're not going to end up in the Suck for Luck sweepstakes.