Coming off a 12-4 campaign, the coaching staff remains intact. There's also reason to believe the NFL's eighth-ranked ground game can reach those heights again in 2013, but the Texans require new tools on offense. Playmakers in the passing game are a must to keep pace with the AFC's elite. With close to 20 unrestricted free agents on the roster -- most of them on defense -- the Texans must restock wisely or watch their Super Bowl window slam shut.
Biggest free agents
»*FS Glover Quin:* Arguably the highest-priority signing for the Texans. Quin is an ideal fit for Wade Phillips' scheme and could be franchise tagged. Take a look at this year's Pro Bowl rosters -- top-tier safeties are rare. If he walks -- and we expect him to be retained -- opponents will thrive through the air.
What they need
Right tackle is a concern, while a productive receiver across from Andre Johnson is a must. A field-stretching pass-catcher would provide Matt Schaub with positive matchups down field, helping the Texans move beyond their comfortable play-action package. Depth is a concern at every level on defense, depending on who leaves in free agency.
Offseason crystal ball
Before attacking the open market, the most important decisions begin at home. With 11 unrestricted free agents on defense (including three starters), the Texans must hold down the fort. Houston owns the No. 27 pick in the draft, and where they go in April might depend on who departs. Hard to call this a successful offseason unless the Texans upgrade at inside linebacker, right tackle and wide receiver.