Biggest weaknesses for AFC South teams

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In a series of articles during the next few days, Football Outsiders will be looking division-by-division at the biggest weakness left on each team's roster after free agency and the 2015 NFL draft.

This edition examines the AFC South.

Houston Texans

Biggest post-draft weakness: Quarterback

As we chronicled before free agency began, Ryan Fitzpatrick was a reasonably effective quarterback for the Texans in 2014 despite his obvious limitations. The team chose to part ways with him, though, and instead re-signed Ryan Mallett and added Brian Hoyer.