In the two weeks leading up to Sunday's game, Titans coach Jeff Fisher has been reluctant to name his starting quarterback, citing "competitive advantage."
Whether Kerry Collins remains Tennessee's signal-caller or former first-round pick Vince Young takes over, Jacksonville will need to apply pressure to keep the Titans from picking apart one of the league's worst pass defenses.
Each quarterback, though, requires a different approach.
When the Jaguars faced Kerry Collins in Week 4, they blitzed Tennessee's line to try and disrupt his pocket, with mixed results.
Pressure from Jacksonville's linebackers up the middle forced him into two interceptions and several key incompletions, but too often he had room and time to throw.
If Collins is sent out against the Jaguars again, Jacksonville's edge rushers and down linemen will have to do a better job of breaking through the line to disrupt the Titans' timing, rather than relying on passes falling incomplete.
Should Tennessee owner Bud Adams' call for Young prevail, however, the Jaguars' approach to the Titans' pocket would change drastically.
Through his 29 games as a starter, Young's 979 rushing yards have contributed more to his reputation than his 22 passing touchdowns and 33 interceptions.
As a quarterback, he poses the greatest threat to opposing defenses when given space to make plays—not, as his 56.9 career passer rating suggests, by dissecting coverage schemes as a pocket passer.
Against Young, that space behind Tennessee's offensive line would be Jacksonville's biggest ally.
Contained and forced to throw, he's twice as likely to turn the ball over as to lead the Titans to a score: in five games against the Jaguars, Young has thrown four touchdowns and eight interceptions.
For both strategies—penetration and containment—Jacksonville will depend on 2008 first-rounder Derrick Harvey to set the tone.
Pitted against All-Pro tackle Michael Roos in the Jaguars' win earlier this year, Harvey had limited success in collapsing the pocket as a down lineman.
If Collins is behind center, Harvey will face the difficult task of bulling Roos, one of the league's most technically-sound blockers, backwards to break Tennessee's pass protection. A pinched pocket would flush Collins out, into the path of Jacksonville's blitzing linebackers.
To harass Young, though, a repeat performance of his solid containment job against running back Chris Johnson would suffice. Without the threat of a scrambling quarterback, the Jaguars can blanket the Titans' receivers in coverage.
[Photo courtesy of Jaguars.com's gallery.]