What's the Texans Biggest Question Mark for 08?

[nunusguy]

A year ago today we were looking at a season opener with D-Rob in our defensive backfield and today we're without him. And offensively we didn't have the same concerns about AJ, Green, & Schaub in terms of their durability. And until we have a couple real look-sees at Duane Brown in "real
games", we dunno if we've got an upgrade at LT ?
So I'm really not ready to concede we are starting a stronger team in '08 than in '07, but I'm confidant we've got a more challenging schedule.