Five reasons Texans may struggle

The Texans have a great QB-WR combo, but Matt Schaub and Andre Johnson need to stay healthy. Bob Levey/Icon SMI

After finally breaking through last season and making the postseason, there is a lot to like about the Houston Texans this season. Heading into the season, they look like the clear-cut favorites to run away with the AFC South, and they are legitimate Super Bowl contenders if Matt Schaub and Andre Johnson can stay healthy.

When you break them down on film, you see the most consistent run game in the NFL with a well-defined zone blocking scheme. You see the best play-action/bootleg passing game in the league. You see a terrific attacking 3-4 defense that creates turnovers and big plays. And you see a veteran coaching staff with a confident roster. However, that same film also reveals some concerns that Houston needs to avoid in 2012-13.

Here are five things that could stop Houston from making a deep playoff run: