The road to 4-0 for the Arizona Cardinals has been filled with challenges and question marks that fortunately the team has been able to overcome. They went through the pre-season without knowing who their starting quarterback would be come Week 1. Through four weeks they seem to have found their starter for the foreseeable future in Kevin Kolb. Even when Skelton returns from injury, it appears as if Kolb has done a good enough job to secure the starting QB spot.
Another offensive problem that has impacted the Cardinals so far this year has been the lack of a consistent running back. The team started the year with Beanie Wells getting the majority of the carries, and once he went down for eight weeks the team turned to Ryan Williams vs. the Dolphins who failed to impress with his 13 carries for 26 yards. As the passing game has gotten better each week, the running game has been fairly consistent, consistently bad. Excluding the game vs. the Eagles when Williams rushed 13 times for 83 yards, the Cardinals have failed to get a single rusher over 45 yards. For a team that is undefeated it is hard to believe how bad they are at running the ball, however, not all the blame rests on the legs of the running backs.
Coming into the season, it was expected the Cardinals would have a weak offensive line, but once tackle Levi Brown was lost to injury, the offensive line got even weaker. Kolb, despite getting sacked a total of 13 times this year and being hurried in the pocket the majority of times he drops back, has still been able to be an effective quarterback and has improved each week. However, the running game is where the struggles of the offensive line has really shown. The Arizona Cardinals are second to last in the NFL with a measly 2.7 yards per carry average, proof that no matter who lines up behind Kolb, they aren't getting the blocking or running lanes to be successful.
Of the three obstacles presented, the Cardinals have only been able to solve one. The other two, running game and offensive line, desperately need to improve the coming weeks for this team to become a serious playoff contender. So far it looks as if this team has one of the best defenses in the league, yet they will need an improved offense when they take on the likes of the 49ers, Bears, Vikings and Packers, all teams that allow 20 points per game or less and have an efficient offense.