After 4 weeks of the NFL season, there remains only three undefeated teams. There are also two teams still searching for their first wins of the year. The list of the five teams with a zero in either the win or loss column include the Atlanta Falcons, Arizona Cardinals, New Orleans Saints, Houston Texans and Cleveland Browns. It should come as no surprise that the Falcons and Texans are both undefeated, and the Browns are winless, but the biggest shock so far has been the play of the Cardinals and the Saints. New Orleans, who fought controversy and distraction all offseason have hit a major road block through the first four games of the season. Meanwhile, Arizona, being led by Kevin Kolb after an injury to opening day starter John Skelton, have managed to play outstanding defense, and also found ways to win against the New England Patriots and Miami Dolphins, both games that could have easily been a loss.