FBO: The two key Bama-Texas factors

Jordan Shipley's ability to do this when returning kicks could decide the BCS championship. Getty Images

For another piece on the drive-sustaining abilities of the Texas Longhorns and Alabama Crimson Tide, please click here.

The Citi BCS National Championship Game presents several intriguing strength-against-strength unit matchups, notably the critical showdown between Texas' offense and Alabama's defense. (Read Mel Kiper's take on Colt McCoy's battle by clicking here.)

McCoy had the Longhorns motoring at more than 430 yards per game in the regular season; Rolando McClain and the Crimson Tide defense surrendered fewer than 250 yards per game.

Something's gotta give, obviously.