How much is enough?

Posted by ESPN.com's Kevin Seifert
GLENDALE, Ariz. -- Will 21 points win this game?

That question popped up after Minnesota missed a chance to extend its 21-0 lead during the second quarter. (Tailback Chester Taylor fumbled in the red zone). The Cardinals have been abominable for the first 20 minutes of this game, but their offense is explosive enough to pile up some points in a hurry.

The Vikings opened up their lead with a nice mix of passing and running. While their defense is swarming Cardinals quarterback Kurt Warner, suggesting a mismatch in the trenches that isn't likely to subside, the Vikings shouldn't be satisfied with this lead.