To say it's been a fascinating first quarter of the NFL season might be underselling it a bit. Look around the standings: Buffalo, Houston, Washington, San Francisco and Detroit all sit atop their respective divisions, with the Lions joining NFC North rival Green Bay as the lone remaining undefeated teams. There's a long way to go, but the 2011 playoff race may be one of the best ones we've seen, thanks to the early shake-up around the league.