No one said going undefeated is going to be easy

There are four undefeated teams and while a perfect season is a long ways away, it's never too early to break down each team's strengths, weaknesses and remaining schedule.

Dallas Cowboys

Strengths: The Cowboys have a lot of things going for them right now and the biggest is QB Tony Romo. Romo is finding the open receivers and might be the most accurate passer in the NFL right now. When Romo doesn't have an open man, he takes matters in his own hands and either runs with it or makes plays on the run. He looks like a young Brett Favre. WR Terrell Owens has been making big plays and not dropping the football like he did in 2006. The Dallas running attack has RB Marion Barber and RB Julius Jones splitting time and gaining plenty of yards. Offensive coordinator Jason Garrett seems to go with the hot hand between the two running backs and that's worked so far. The Dallas offensive line, led by LT Flozell Adams and RT Marc Colombo, has given Romo plenty of time in pass protection and hasn't given up many sacks. The defense is among the top 10 in rushing defense and defensive ends Chris Canty and Marcus Spears play a physical style of football that makes it difficult for opposing offensive lineman to move them. Canty and Spears do an excellent job playing in the two-gap 3-4 scheme. Corner Anthony Henry is one of the NFL leaders in interceptions and the secondary has been solid. The Cowboys are playing well in two out of the three phases of the game.