What you need to know about the AFC South

Andrew Luck has taken the Indianapolis Colts a bit deeper into the playoffs in each of his first two seasons in the NFL.

Now, it gets tougher after a 2013 season in which the Colts won 11 games and the other three teams combined for 13 wins.

The Houston Texans, under new coach Bill OBrien, are determined to put up a better fight, with J.J. Watt and Brian Cushing healthy and joined on defense by the No. 1 pick in the NFL draft, Jadeveon Clowney. As for the Colts, Arthur Jones is a nice acquisition on a defense that will be missing a key player because of a four-game suspension. On offense, Luck is Luck, but the Colts need Trent Richardson to prove he isnt a big bust. As for the Tennessee Titans and Jacksonville Jaguars, the phrase works in progress comes to mind.

Houston Texans

Top story line Bill OBrien, aka the leagues toughest-looking coach since Bill Cowher, arrives to try to take the division back from the Indianapolis Colts.

Key acquisition Jadeveon Clowney, the No. 1 draft pick, will bolster a defense geared toward regaining its elite status and stopping Luck. Unfortunately, it isnt certain when hell play yet as he recovers from sports hernia surgery in June.

Biggest loss It may just be Andre Johnson, who is unhappy and may be a holdout.

Indianapolis Colts

Top story line The Colts were forced to adjust to injuries on the fly and still Andrew Luck took them to a division title and to a playoff win in his second season. It figures to be more difficult to take the AFC South this year.

Key acquisition Defensive end Arthur Jones comes over from the Baltimore Ravens, joining Chuck Pagano, who coached him in Baltimore.

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What you need to know about the AFC South